[ADD] rma: new module

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Translation: rma-12.0/rma-12.0-rma
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rma/README.rst

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+===========================================
+Return Merchandise Authorization Management
+===========================================
+
+.. !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+   !! This file is generated by oca-gen-addon-readme !!
+   !! changes will be overwritten.                   !!
+   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+.. |badge1| image:: https://img.shields.io/badge/maturity-Beta-yellow.png
+    :target: https://odoo-community.org/page/development-status
+    :alt: Beta
+.. |badge2| image:: https://img.shields.io/badge/licence-AGPL--3-blue.png
+    :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html
+    :alt: License: AGPL-3
+.. |badge3| image:: https://img.shields.io/badge/github-OCA%2Frma-lightgray.png?logo=github
+    :target: https://github.com/OCA/rma/tree/12.0/rma
+    :alt: OCA/rma
+.. |badge4| image:: https://img.shields.io/badge/weblate-Translate%20me-F47D42.png
+    :target: https://translation.odoo-community.org/projects/rma-12-0/rma-12-0-rma
+    :alt: Translate me on Weblate
+.. |badge5| image:: https://img.shields.io/badge/runbot-Try%20me-875A7B.png
+    :target: https://runbot.odoo-community.org/runbot/145/12.0
+    :alt: Try me on Runbot
+
+|badge1| |badge2| |badge3| |badge4| |badge5| 
+
+This module allows you to manage `Return Merchandise Authorization (RMA)
+<https://en.wikipedia.org/wiki/Return_merchandise_authorization>`_.
+RMA documents can be created from scratch, from a delivery order or from
+an incoming email. Product receptions and returning delivery operations
+of the RMA module are fully integrated with the Receipts and Deliveries
+Operations of Odoo inventory core module. It also allows you to generate
+refunds in the same way as Odoo generates it.
+Besides, you have full integration of the RMA documents in the customer portal.
+
+**Table of contents**
+
+.. contents::
+   :local:
+
+Configuration
+=============
+
+If you want RMAs to be created from incoming emails, you need to:
+
+#. Go to *Settings > General Settings*.
+#. Check 'External Email Servers' checkbox under *Discuss* section.
+#. Set an 'alias domain' and an incoming server.
+#. Go to *RMA > Configuration > RMA Team* and select a team or create a new
+   one.
+#. Go to 'Email' tab and set an 'Email Alias'.
+
+Usage
+=====
+
+To use this module, you need to:
+
+#. Go to *RMA > Orders* and create a new RMA.
+#. Select a partner, an invoice address, select a product
+   (or select a picking and a move instead), write a quantity, fill the rest
+   of the form and click on 'confirm' button in the status bar.
+#. You will see an smart button labeled 'Receipt'. Click on that button to see
+   the reception operation form.
+#. If everything is right, validate the operation and go back to the RMA to
+   see it in a 'received' state.
+#. Now you are able to generate a refund, generate a delivery order to return
+   to the customer the same product or another product as a replacement, split
+   the RMA by extracting a part of the remaining quantity to another RMA,
+   preview the RMA in the website. All of these operations can be done by
+   clicking on the buttons in the status bar.
+
+   * If you click on 'Refund' button, a refund will be created, and it will be
+     accessible via the smart button labeled Refund. The RMA will be set
+     automatically to 'Refunded' state when the refund is validated.
+   * If you click on 'Replace' or 'Return to customer' button instead,
+     a popup wizard will guide you to create a Delivery order to the client
+     and this order will be accessible via the smart button labeled Delivery.
+     The RMA will be set automatically to 'Replaced' or 'Returned' state when
+     the RMA quantity is equal or lower than the quantity in done delivery
+     orders linked to it.
+
+An RMA can also be created from a return of a delivery order:
+
+#. Select a delivery order and click on 'Return' button to create a return.
+#. Check "Create RMAs" checkbox in the returning wizard, select the RMA
+   stock location and click on 'Return' button.
+#. An RMA will be created for each product returned in the previous step.
+   Every RMA will be in confirmed state and they will
+   be linked to the returning operation generated previously.
+
+**Note: An RMA can also be created from an incoming email (See configuration
+section).**
+
+Known issues / Roadmap
+======================
+
+* As soon as the picking is selected, the user should select the move,
+  but perhaps stock.move _rec_name could be improved to better show what
+  the product of that move is.
+
+Bug Tracker
+===========
+
+Bugs are tracked on `GitHub Issues <https://github.com/OCA/rma/issues>`_.
+In case of trouble, please check there if your issue has already been reported.
+If you spotted it first, help us smashing it by providing a detailed and welcomed
+`feedback <https://github.com/OCA/rma/issues/new?body=module:%20rma%0Aversion:%2012.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
+
+Do not contact contributors directly about support or help with technical issues.
+
+Credits
+=======
+
+Authors
+~~~~~~~
+
+* Tecnativa
+
+Contributors
+~~~~~~~~~~~~
+
+* `Tecnativa <https://www.tecnativa.com>`_:
+
+  * Ernesto Tejeda
+  * Pedro M. Baeza
+  * David Vidal
+
+Maintainers
+~~~~~~~~~~~
+
+This module is maintained by the OCA.
+
+.. image:: https://odoo-community.org/logo.png
+   :alt: Odoo Community Association
+   :target: https://odoo-community.org
+
+OCA, or the Odoo Community Association, is a nonprofit organization whose
+mission is to support the collaborative development of Odoo features and
+promote its widespread use.
+
+.. |maintainer-ernestotejeda| image:: https://github.com/ernestotejeda.png?size=40px
+    :target: https://github.com/ernestotejeda
+    :alt: ernestotejeda
+
+Current `maintainer <https://odoo-community.org/page/maintainer-role>`__:
+
+|maintainer-ernestotejeda| 
+
+This module is part of the `OCA/rma <https://github.com/OCA/rma/tree/12.0/rma>`_ project on GitHub.
+
+You are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.

rma/__init__.py

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+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from . import controllers
+from . import models
+from . import wizard
+from .hooks import  post_init_hook

rma/__manifest__.py

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+# Copyright 2020 Tecnativa - Ernesto Tejeda
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+{
+    "name": "Return Merchandise Authorization Management",
+    "summary": "Return Merchandise Authorization (RMA)",
+    "version": "12.0.1.0.0",
+    "development_status": "Beta",
+    "category": "RMA",
+    "website": "https://github.com/OCA/rma",
+    "author": "Tecnativa, Odoo Community Association (OCA)",
+    "maintainers": ["ernestotejeda"],
+    "license": "AGPL-3",
+    "depends": [
+        "account",
+        "stock",
+    ],
+    "data": [
+        "views/report_rma.xml",
+        "report/report.xml",
+        "data/mail_data.xml",
+        "data/rma_operation_data.xml",
+        "security/rma_security.xml",
+        "security/ir.model.access.csv",
+        "wizard/stock_picking_return_views.xml",
+        "wizard/rma_delivery_views.xml",
+        "wizard/rma_split_views.xml",
+        "views/menus.xml",
+        "views/res_partner_views.xml",
+        "views/rma_portal_templates.xml",
+        "views/rma_team_views.xml",
+        "views/rma_views.xml",
+        "views/stock_picking_views.xml",
+        "views/stock_warehouse_views.xml",
+    ],
+    'post_init_hook': 'post_init_hook',
+    "application": True,
+}

rma/controllers/__init__.py

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+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from . import main

rma/controllers/main.py

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+# Copyright 2020 Tecnativa - Ernesto Tejeda
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo import _, exceptions, http
+from odoo.exceptions import AccessError, MissingError
+from odoo.http import request
+from odoo.addons.portal.controllers.portal import CustomerPortal,\
+    pager as portal_pager
+from odoo.tools import consteq
+
+
+class PortalRma(CustomerPortal):
+
+    def _prepare_portal_layout_values(self):
+        values = super()._prepare_portal_layout_values()
+        values['rma_count'] = request.env['rma'].search_count([])
+        return values
+
+    def _rma_get_page_view_values(self, rma, access_token, **kwargs):
+        values = {
+            'page_name': 'RMA',
+            'rma': rma,
+        }
+        return self._get_page_view_values(
+            rma, access_token, values, 'my_rmas_history', False, **kwargs)
+
+    def _get_filter_domain(self, kw):
+        return []
+
+    @http.route(['/my/rmas', '/my/rmas/page/<int:page>'],
+                type='http', auth="user", website=True)
+    def portal_my_rmas(self, page=1, date_begin=None, date_end=None,
+                       sortby=None, **kw):
+        values = self._prepare_portal_layout_values()
+        rma_obj = request.env['rma']
+        domain = self._get_filter_domain(kw)
+        searchbar_sortings = {
+            'date': {'label': _('Date'), 'order': 'date desc'},
+            'name': {'label': _('Name'), 'order': 'name desc'},
+            'state': {'label': _('Status'), 'order': 'state'},
+        }
+        # default sort by order
+        if not sortby:
+            sortby = 'date'
+        order = searchbar_sortings[sortby]['order']
+        archive_groups = self._get_archive_groups('rma', domain)
+        if date_begin and date_end:
+            domain += [
+                ('create_date', '>', date_begin),
+                ('create_date', '<=', date_end),
+            ]
+        # count for pager
+        rma_count = rma_obj.search_count(domain)
+        # pager
+        pager = portal_pager(
+            url="/my/rmas",
+            url_args={
+                'date_begin': date_begin,
+                'date_end': date_end,
+                'sortby': sortby,
+            },
+            total=rma_count,
+            page=page,
+            step=self._items_per_page
+        )
+        # content according to pager and archive selected
+        rmas = rma_obj.search(
+            domain,
+            order=order,
+            limit=self._items_per_page,
+            offset=pager['offset']
+        )
+        request.session['my_rmas_history'] = rmas.ids[:100]
+        values.update({
+            'date': date_begin,
+            'rmas': rmas,
+            'page_name': 'RMA',
+            'pager': pager,
+            'archive_groups': archive_groups,
+            'default_url': '/my/rmas',
+            'searchbar_sortings': searchbar_sortings,
+            'sortby': sortby,
+        })
+        return request.render("rma.portal_my_rmas", values)
+
+    @http.route(['/my/rmas/<int:rma_id>'],
+                type='http', auth="public", website=True)
+    def portal_my_rma_detail(self, rma_id, access_token=None,
+                             report_type=None, download=False, **kw):
+        try:
+            rma_sudo = self._document_check_access('rma', rma_id, access_token)
+        except (AccessError, MissingError):
+            return request.redirect('/my')
+        if report_type in ('html', 'pdf', 'text'):
+            return self._show_report(
+                model=rma_sudo,
+                report_type=report_type,
+                report_ref='rma.report_rma_action',
+                download=download,
+            )
+
+        values = self._rma_get_page_view_values(rma_sudo, access_token, **kw)
+        return request.render("rma.portal_rma_page", values)
+
+    @http.route(['/my/rma/picking/pdf/<int:picking_id>'],
+                type='http', auth="public", website=True)
+    def portal_my_rma_picking_report(self, picking_id, access_token=None,
+                                     **kw):
+        try:
+            picking_sudo = self._stock_picking_check_access(
+                picking_id, access_token=access_token)
+        except exceptions.AccessError:
+            return request.redirect('/my')
+        report_sudo = request.env.ref('stock.action_report_delivery').sudo()
+        pdf = report_sudo.render_qweb_pdf([picking_sudo.id])[0]
+        pdfhttpheaders = [
+            ('Content-Type', 'application/pdf'),
+            ('Content-Length', len(pdf)),
+        ]
+        return request.make_response(pdf, headers=pdfhttpheaders)
+
+    def _stock_picking_check_access(self, picking_id, access_token=None):
+        picking = request.env['stock.picking'].browse([picking_id])
+        picking_sudo = picking.sudo()
+        try:
+            picking.check_access_rights('read')
+            picking.check_access_rule('read')
+        except exceptions.AccessError:
+            if not access_token or not consteq(
+                    picking_sudo.sale_id.access_token, access_token):
+                raise
+        return picking_sudo

rma/data/mail_data.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<data noupdate="1">
+    <!-- rma-related subtypes for messaging / Chatter -->
+    <record id="mt_rma_draft" model="mail.message.subtype">
+        <field name="name">Draft RMA</field>
+        <field name="res_model">rma</field>
+        <field name="default" eval="False"/>
+        <field name="description">New RMA in draft state</field>
+    </record>
+    <!-- rma_team-related subtypes for messaging / Chatter -->
+    <record id="mt_rma_team_rma_draft" model="mail.message.subtype">
+        <field name="name">Draft RMA</field>
+        <field name="sequence">10</field>
+        <field name="res_model">rma.team</field>
+        <field name="default" eval="True"/>
+        <field name="parent_id" eval="ref('rma.mt_rma_draft')"/>
+        <field name="relation_field">team_id</field>
+    </record>
+    <!--RMA email template -->
+    <record id="mail_template_rma_notification" model="mail.template">
+        <field name="name">RMA Notification</field>
+        <field name="model_id" ref="model_rma"/>
+        <field name="email_from">${object.user_id.email_formatted |safe}</field>
+        <field name="partner_to">${object.partner_id.id}</field>
+        <field name="subject">${object.company_id.name} RMA (Ref ${object.name or 'n/a' })</field>
+        <field name="report_template" ref="report_rma_action" />
+        <field name="report_name">${(object.name or '')}</field>
+        <field name="lang">${object.partner_id.lang}</field>
+        <field name="user_signature" eval="True"/>
+        <field name="auto_delete" eval="True"/>
+        <field name="body_html" type="html">
+<div style="margin: 0px; padding: 0px;">
+<p style="margin: 0px; padding: 0px; font-size: 13px;">
+    Dear ${object.partner_id.name}
+    % if object.partner_id.parent_id:
+        (${object.partner_id.parent_id.name})
+    % endif
+    <br /><br />
+    Here is the RMA <strong>${object.name}</strong> from ${object.company_id.name}.
+    <br /><br />
+    Do not hesitate to contact us if you have any question.
+</p>
+</div>
+        </field>
+    </record>
+</data>

rma/data/rma_operation_data.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<data noupdate="1">
+    <record id="rma_operation_replace" model="rma.operation">
+        <field name="name">Replace</field>
+    </record>
+    <record id="rma_operation_return" model="rma.operation">
+        <field name="name">Repair</field>
+    </record>
+    <record id="rma_operation_refund" model="rma.operation">
+        <field name="name">Refund</field>
+    </record>
+</data>

rma/hooks.py

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+# Copyright 2020 Tecnativa - Ernesto Tejeda
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo import api, SUPERUSER_ID
+
+
+def post_init_hook(cr, registry):
+    env = api.Environment(cr, SUPERUSER_ID, {})
+
+    def _get_next_picking_type_color():
+        """ Choose the next available color for the operation types."""
+        stock_picking_type = env['stock.picking.type']
+        picking_type = stock_picking_type.search_read(
+            [('warehouse_id', '!=', False), ('color', '!=', False)],
+            ['color'],
+            order='color',
+        )
+        all_used_colors = [res['color'] for res in picking_type]
+        available_colors = [color for color in range(0, 12)
+                            if color not in all_used_colors]
+        return available_colors[0] if available_colors else 0
+
+    def create_rma_locations(warehouse):
+        stock_location = env['stock.location']
+        location_vals = warehouse._get_locations_values({})
+        for field_name, values in location_vals.items():
+            if field_name == 'rma_loc_id' and not warehouse.rma_loc_id:
+                warehouse.rma_loc_id = stock_location.with_context(
+                    active_test=False).create(values).id
+
+    def create_rma_picking_types(whs):
+        ir_sequence_sudo = env['ir.sequence'].sudo()
+        stock_picking_type = env['stock.picking.type']
+        color = _get_next_picking_type_color()
+        stock_picking = stock_picking_type.search(
+            [('sequence', '!=', False)], limit=1, order='sequence desc')
+        max_sequence = stock_picking.sequence or 0
+        create_data = whs._get_picking_type_create_values(max_sequence)[0]
+        sequence_data = whs._get_sequence_values()
+        data = {}
+        for picking_type, values in create_data.items():
+            if (picking_type in ['rma_in_type_id', 'rma_out_type_id']
+                    and not whs[picking_type]):
+                picking_sequence = sequence_data[picking_type]
+                sequence = ir_sequence_sudo.create(picking_sequence)
+                values.update(
+                    warehouse_id=whs.id,
+                    color=color,
+                    sequence_id=sequence.id,
+                )
+                data[picking_type] = stock_picking_type.create(values).id
+
+        rma_out_type = stock_picking_type.browse(data['rma_out_type_id'])
+        rma_out_type.write({
+            'return_picking_type_id': data.get('rma_in_type_id', False)
+        })
+        rma_in_type = stock_picking_type.browse(data['rma_in_type_id'])
+        rma_in_type.write({
+            'return_picking_type_id': data.get('rma_out_type_id', False)
+        })
+        whs.write(data)
+
+    # Create rma locations and picking types
+    warehouses = env['stock.warehouse'].search([])
+    for warehouse in warehouses:
+        create_rma_locations(warehouse)
+        create_rma_picking_types(warehouse)
+    # Create rma sequence per company
+    for company in env['res.company'].search([]):
+        company.create_rma_index()

rma/models/__init__.py

@@ -0,0 +1,12 @@
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from . import account_invoice
+from . import rma
+from . import rma_operation
+from . import rma_team
+from . import res_company
+from . import res_partner
+from . import res_users
+from . import stock_move
+from . import stock_picking
+from . import stock_warehouse

rma/models/account_invoice.py

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+# Copyright 2020 Tecnativa - Ernesto Tejeda
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo import _, fields, models
+from odoo.exceptions import ValidationError
+from odoo.tools import float_compare
+
+
+class AccountInvoice(models.Model):
+    _inherit = 'account.invoice'
+
+    def action_invoice_open(self):
+        """ Avoids to validate a refund with less quantity of product than
+        quantity in the linked RMA.
+        """
+        precision = self.env['decimal.precision'].precision_get(
+            'Product Unit of Measure')
+        if self.mapped('invoice_line_ids').filtered(
+                lambda r: (r.rma_id and float_compare(
+                    r.quantity, r.rma_id.product_uom_qty, precision) < 0)):
+            raise ValidationError(
+                _("There is at least one invoice lines whose quantity is "
+                  "less than the quantity specified in its linked RMA."))
+        res = super().action_invoice_open()
+        self.mapped('invoice_line_ids.rma_id').write({'state': 'refunded'})
+        return res
+
+
+class AccountInvoiceLine(models.Model):
+    _inherit = 'account.invoice.line'
+
+    rma_id = fields.Many2one(
+        comodel_name='rma',
+        string='RMA',
+    )

rma/models/res_company.py

@@ -0,0 +1,23 @@
+# Copyright 2020 Tecnativa - Ernesto Tejeda
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo import api, models, _
+
+
+class Company(models.Model):
+    _inherit = "res.company"
+
+    @api.model
+    def create(self, vals):
+        company = super(Company, self).create(vals)
+        company.create_rma_index()
+        return company
+
+    def create_rma_index(self):
+        self.env['ir.sequence'].sudo().create({
+            'name': _('RMA Code'),
+            'prefix': 'RMA',
+            'code': 'rma',
+            'padding': 4,
+            'company_id': self.id,
+        })

rma/models/res_partner.py

@@ -0,0 +1,41 @@
+# Copyright 2020 Tecnativa - Ernesto Tejeda
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo import fields, models
+
+
+class ResPartner(models.Model):
+    _inherit = 'res.partner'
+
+    rma_ids = fields.One2many(
+        comodel_name='rma',
+        inverse_name='partner_id',
+        string='RMAs',
+    )
+    rma_count = fields.Integer(
+        string='RMA count',
+        compute='_compute_rma_count',
+    )
+
+    def _compute_rma_count(self):
+        rma_data = self.env['rma'].read_group(
+            [('partner_id', 'in', self.ids)], ['partner_id'], ['partner_id'])
+        mapped_data = dict(
+            [(r['partner_id'][0], r['partner_id_count']) for r in rma_data])
+        for record in self:
+            record.rma_count = mapped_data.get(record.id, 0)
+
+    def action_view_rma(self):
+        self.ensure_one()
+        action = self.env.ref('rma.rma_action').read()[0]
+        rma = self.rma_ids
+        if len(rma) == 1:
+            action.update(
+                res_id=rma.id,
+                view_mode="form",
+                view_id=False,
+                views=False,
+            )
+        else:
+            action['domain'] = [('partner_id', 'in', self.ids)]
+        return action

rma/models/res_users.py

@@ -0,0 +1,14 @@
+# Copyright 2020 Tecnativa - Ernesto Tejeda
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo import fields, models
+
+
+class ResUsers(models.Model):
+    _inherit = 'res.users'
+
+    rma_team_id = fields.Many2one(
+        comodel_name='rma.team',
+        string="RMA Team",
+        help='RMA Team the user is member of.',
+    )

rma/models/rma_operation.py

@@ -0,0 +1,15 @@
+# Copyright 2020 Tecnativa - Ernesto Tejeda
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo import fields, models
+
+
+class RmaOperation(models.Model):
+    _name = "rma.operation"
+    _description = "RMA requested operation"
+
+    name = fields.Char(required=True, translate=True)
+
+    _sql_constraints = [
+        ('name_uniq', 'unique (name)', "That operation name already exists !"),
+    ]

rma/models/rma_team.py

@@ -0,0 +1,56 @@
+# Copyright 2020 Tecnativa - Ernesto Tejeda
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo import _, fields, models
+
+
+class RmaTeam(models.Model):
+    _name = "rma.team"
+    _inherit = ['mail.alias.mixin', 'mail.thread']
+    _description = "RMA Team"
+    _order = "name"
+
+    name = fields.Char(
+        required=True,
+        translate=True,
+    )
+    active = fields.Boolean(
+        default=True,
+        help="If the active field is set to false, it will allow you "
+             "to hide the RMA Team without removing it.",
+    )
+    company_id = fields.Many2one(
+        comodel_name="res.company",
+        string="Company",
+        default=lambda self: self.env.user.company_id,
+    )
+    user_id = fields.Many2one(
+        comodel_name="res.users",
+        string="Team Leader",
+        domain=[('share', '=', False)],
+        default=lambda self: self.env.user,
+    )
+    member_ids = fields.One2many(
+        comodel_name='res.users',
+        inverse_name='rma_team_id',
+        string='Team Members',
+    )
+
+    def copy(self, default=None):
+        if default is None:
+            default = {}
+        if not default.get('name'):
+            default['name'] = _("%s (copy)") % self.name
+        team = super().copy(default)
+        for follower in self.message_follower_ids:
+            team.message_subscribe(partner_ids=follower.partner_id.ids,
+                                   subtype_ids=follower.subtype_ids.ids)
+        return team
+
+    def get_alias_model_name(self, vals):
+        return vals.get('alias_model', 'rma')
+
+    def get_alias_values(self):
+        values = super().get_alias_values()
+        values['alias_defaults'] = {'team_id': self.id}
+        return values

rma/models/stock_move.py

@@ -0,0 +1,96 @@
+# Copyright 2020 Tecnativa - Ernesto Tejeda
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo import _, api, fields, models
+from odoo.exceptions import ValidationError
+
+
+class StockMove(models.Model):
+    _inherit = "stock.move"
+
+    # RMAs that were created from the delivery move
+    rma_ids = fields.One2many(
+        comodel_name='rma',
+        inverse_name='move_id',
+        string='RMAs',
+        copy=False,
+    )
+    # RMAs linked to the incoming movement from client
+    rma_receiver_ids = fields.One2many(
+        comodel_name='rma',
+        inverse_name='reception_move_id',
+        string='RMA receivers',
+        copy=False,
+    )
+    # RMA that create the delivery movement to the customer
+    rma_id = fields.Many2one(
+        comodel_name='rma',
+        string='RMA return',
+        copy=False,
+    )
+
+    def unlink(self):
+        rma_receiver = self.mapped('rma_receiver_ids')
+        rma = self.mapped('rma_id')
+        res = super().unlink()
+        rma_receiver.write({'state': 'draft'})
+        rma.update_received_state()
+        rma.update_replaced_state()
+        return res
+
+    def _action_cancel(self):
+        res = super()._action_cancel()
+        cancelled_moves = self.filtered(lambda r: r.state == 'cancel')
+        cancelled_moves.mapped('rma_receiver_ids').write({'state': 'draft'})
+        cancelled_moves.mapped('rma_id').update_received_state()
+        cancelled_moves.mapped('rma_id').update_replaced_state()
+        return res
+
+    def _action_done(self):
+        """ Avoids to validate stock.move with less quantity than the
+        quantity in the linked receiver RMA. It also set the appropriated
+        linked RMA to 'received' or 'delivered'.
+        """
+        for move in self.filtered(
+                lambda r: r.state not in ('done', 'cancel')):
+            rma_receiver = move.rma_receiver_ids
+            if (rma_receiver
+                    and move.quantity_done != rma_receiver.product_uom_qty):
+                raise ValidationError(
+                    _("The quantity done for the product '%s' must "
+                      "be equal to its initial demand because the "
+                      "stock move is linked to an RMA (%s).")
+                    % (move.product_id.name, move.rma_receiver_ids.name)
+                )
+        res = super()._action_done()
+        move_done = self.filtered(lambda r: r.state == 'done')
+        # set RMAs as received
+        to_be_received = move_done.mapped('rma_receiver_ids').filtered(
+            lambda r: r.state == 'confirmed')
+        to_be_received.write({'state': 'received'})
+        # set RMAs as delivered
+        move_done.mapped('rma_id').update_replaced_state()
+        move_done.mapped('rma_id').update_returned_state()
+        return res
+
+    @api.model
+    def _prepare_merge_moves_distinct_fields(self):
+        """ The main use is that launched delivery RMAs doesn't merge
+        two moves if they are linked to a different RMAs.
+        """
+        return super()._prepare_merge_moves_distinct_fields() + ['rma_id']
+
+    def _prepare_move_split_vals(self, qty):
+        """ Intended to the backport of picking linked to RMAs propagates the
+        RMA link id.
+        """
+        res = super()._prepare_move_split_vals(qty)
+        res['rma_id'] = self.rma_id.id
+        return res
+
+
+class StockRule(models.Model):
+    _inherit = 'stock.rule'
+
+    def _get_custom_move_fields(self):
+        return super()._get_custom_move_fields() + ['rma_id']

rma/models/stock_picking.py

@@ -0,0 +1,41 @@
+# Copyright 2020 Tecnativa - Ernesto Tejeda
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo import fields, models
+
+
+class StockPicking(models.Model):
+    _inherit = 'stock.picking'
+
+    rma_count = fields.Integer(
+        string='RMA count',
+        compute='_compute_rma_count',
+    )
+
+    def _compute_rma_count(self):
+        for rec in self:
+            rec.rma_count = len(rec.move_lines.mapped('rma_ids'))
+
+    def copy(self, default=None):
+        if self.env.context.get('set_rma_picking_type'):
+            location_dest_id = default['location_dest_id']
+            warehouse = self.env['stock.warehouse'].search(
+                [('rma_loc_id', 'parent_of', location_dest_id)], limit=1)
+            if warehouse:
+                default['picking_type_id'] = warehouse.rma_in_type_id.id
+        return super().copy(default)
+
+    def action_view_rma(self):
+        self.ensure_one()
+        action = self.env.ref('rma.rma_action').read()[0]
+        rma = self.move_lines.mapped('rma_ids')
+        if len(rma) == 1:
+            action.update(
+                res_id=rma.id,
+                view_mode="form",
+                view_id=False,
+                views=False,
+            )
+        else:
+            action['domain'] = [('id', 'in', rma.ids)]
+        return action

rma/models/stock_warehouse.py

@@ -0,0 +1,118 @@
+# Copyright 2020 Tecnativa - Ernesto Tejeda
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo import fields, models, _
+
+
+class StockWarehouse(models.Model):
+    _inherit = 'stock.warehouse'
+
+    # This is a strategic field used to create an rma location
+    # and rma operation types in existing warehouses when
+    # installing this module.
+    rma = fields.Boolean(
+        'RMA',
+        default=True,
+        help="RMA related products can be stored in this warehouse.")
+    rma_in_type_id = fields.Many2one(
+        comodel_name='stock.picking.type',
+        string='RMA In Type',
+    )
+    rma_out_type_id = fields.Many2one(
+        comodel_name='stock.picking.type',
+        string='RMA Out Type',
+    )
+    rma_loc_id = fields.Many2one(
+        comodel_name='stock.location',
+        string='RMA Location',
+    )
+
+    def _get_locations_values(self, vals):
+        values = super()._get_locations_values(vals)
+        values.update({
+            'rma_loc_id': {
+                'name': 'RMA',
+                'active': True,
+                'return_location': True,
+                'usage': 'internal',
+                'company_id': vals.get('company_id', self.company_id.id),
+                'location_id': self.view_location_id.id,
+            },
+        })
+        return values
+
+    def _get_sequence_values(self):
+        values = super()._get_sequence_values()
+        values.update({
+            'rma_in_type_id': {
+                'name': self.name + ' ' + _('Sequence RMA in'),
+                'prefix': self.code + '/RMA/IN/', 'padding': 5,
+                'company_id': self.company_id.id,
+            },
+            'rma_out_type_id': {
+                'name': self.name + ' ' + _('Sequence RMA out'),
+                'prefix': self.code + '/RMA/OUT/', 'padding': 5,
+                'company_id': self.company_id.id,
+            },
+        })
+        return values
+
+    def _update_name_and_code(self, new_name=False, new_code=False):
+        for warehouse in self:
+            sequence_data = warehouse._get_sequence_values()
+            warehouse.rma_in_type_id.sequence_id.write(
+                sequence_data['rma_in_type_id'])
+            warehouse.rma_in_type_id.sequence_id.write(
+                sequence_data['rma_out_type_id'])
+
+    def _get_picking_type_create_values(self, max_sequence):
+        data, next_sequence = super()._get_picking_type_create_values(
+            max_sequence)
+        data.update({
+            'rma_in_type_id': {
+                'name': _('RMA Receipts'),
+                'code': 'incoming',
+                'use_create_lots': True,
+                'use_existing_lots': False,
+                'default_location_src_id': False,
+                'default_location_dest_id': self.rma_loc_id.id,
+                'sequence': max_sequence + 1,
+            },
+            'rma_out_type_id': {
+                'name': _('RMA Delivery Orders'),
+                'code': 'outgoing',
+                'use_create_lots': False,
+                'use_existing_lots': True,
+                'default_location_src_id': self.rma_loc_id.id,
+                'default_location_dest_id': False,
+                'sequence': max_sequence + 2,
+            },
+        })
+        return data, max_sequence + 3
+
+    def _get_picking_type_update_values(self):
+        data = super()._get_picking_type_update_values()
+        data.update({
+            'rma_in_type_id': {
+                'default_location_dest_id': self.rma_loc_id.id,
+            },
+            'rma_out_type_id': {
+                'default_location_src_id': self.rma_loc_id.id,
+            },
+        })
+        return data
+
+    def _create_or_update_sequences_and_picking_types(self):
+        data = super()._create_or_update_sequences_and_picking_types()
+        stock_picking_type = self.env['stock.picking.type']
+        if 'out_type_id' in data:
+            rma_out_type = stock_picking_type.browse(data['rma_out_type_id'])
+            rma_out_type.write({
+                'return_picking_type_id': data.get('rma_in_type_id', False)
+            })
+        if 'rma_in_type_id' in data:
+            rma_in_type = stock_picking_type.browse(data['rma_in_type_id'])
+            rma_in_type.write({
+                'return_picking_type_id': data.get('rma_out_type_id', False)
+            })
+        return data

rma/readme/CONFIGURE.rst

@@ -0,0 +1,8 @@
+If you want RMAs to be created from incoming emails, you need to:
+
+#. Go to *Settings > General Settings*.
+#. Check 'External Email Servers' checkbox under *Discuss* section.
+#. Set an 'alias domain' and an incoming server.
+#. Go to *RMA > Configuration > RMA Team* and select a team or create a new
+   one.
+#. Go to 'Email' tab and set an 'Email Alias'.

rma/readme/CONTRIBUTORS.rst

@@ -0,0 +1,5 @@
+* `Tecnativa <https://www.tecnativa.com>`_:
+
+  * Ernesto Tejeda
+  * Pedro M. Baeza
+  * David Vidal

rma/readme/DESCRIPTION.rst

@@ -0,0 +1,8 @@
+This module allows you to manage `Return Merchandise Authorization (RMA)
+<https://en.wikipedia.org/wiki/Return_merchandise_authorization>`_.
+RMA documents can be created from scratch, from a delivery order or from
+an incoming email. Product receptions and returning delivery operations
+of the RMA module are fully integrated with the Receipts and Deliveries
+Operations of Odoo inventory core module. It also allows you to generate
+refunds in the same way as Odoo generates it.
+Besides, you have full integration of the RMA documents in the customer portal.

rma/readme/ROADMAP.rst

@@ -0,0 +1,3 @@
+* As soon as the picking is selected, the user should select the move,
+  but perhaps stock.move _rec_name could be improved to better show what
+  the product of that move is.

rma/readme/USAGE.rst

@@ -0,0 +1,37 @@
+To use this module, you need to:
+
+#. Go to *RMA > Orders* and create a new RMA.
+#. Select a partner, an invoice address, select a product
+   (or select a picking and a move instead), write a quantity, fill the rest
+   of the form and click on 'confirm' button in the status bar.
+#. You will see an smart button labeled 'Receipt'. Click on that button to see
+   the reception operation form.
+#. If everything is right, validate the operation and go back to the RMA to
+   see it in a 'received' state.
+#. Now you are able to generate a refund, generate a delivery order to return
+   to the customer the same product or another product as a replacement, split
+   the RMA by extracting a part of the remaining quantity to another RMA,
+   preview the RMA in the website. All of these operations can be done by
+   clicking on the buttons in the status bar.
+
+   * If you click on 'Refund' button, a refund will be created, and it will be
+     accessible via the smart button labeled Refund. The RMA will be set
+     automatically to 'Refunded' state when the refund is validated.
+   * If you click on 'Replace' or 'Return to customer' button instead,
+     a popup wizard will guide you to create a Delivery order to the client
+     and this order will be accessible via the smart button labeled Delivery.
+     The RMA will be set automatically to 'Replaced' or 'Returned' state when
+     the RMA quantity is equal or lower than the quantity in done delivery
+     orders linked to it.
+
+An RMA can also be created from a return of a delivery order:
+
+#. Select a delivery order and click on 'Return' button to create a return.
+#. Check "Create RMAs" checkbox in the returning wizard, select the RMA
+   stock location and click on 'Return' button.
+#. An RMA will be created for each product returned in the previous step.
+   Every RMA will be in confirmed state and they will
+   be linked to the returning operation generated previously.
+
+**Note: An RMA can also be created from an incoming email (See configuration
+section).**

rma/report/report.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<odoo>
+    <data>
+        <report
+            id="report_rma_action"
+            string="RMA Report"
+            model="rma"
+            report_type="qweb-pdf"
+            file="rma.report_rma"
+            name="rma.report_rma"
+            print_report_name="object._get_report_base_filename()"
+        />
+    </data>
+</odoo>

rma/security/ir.model.access.csv

@@ -0,0 +1,8 @@
+id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
+access_rma_team_user_own,rma.team.user.own,model_rma_team,rma_group_user_own,1,0,0,0
+access_rma_team_manager,rma.team.manager,model_rma_team,rma_group_manager,1,1,1,1
+access_rma_portal,rma.portal,model_rma,base.group_portal,1,0,0,0
+access_rma_user_own,rma.user.own,model_rma,rma_group_user_own,1,1,1,0
+access_rma_manager,rma.manager,model_rma,rma_group_manager,1,1,1,1
+access_rma_operation_user_own,rma.operation.user.own,model_rma_operation,rma_group_user_own,1,0,0,0
+access_rma_operation_manager,rma.operation.manager,model_rma_operation,rma_group_manager,1,1,1,1

rma/security/rma_security.xml

@@ -0,0 +1,60 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2020 Tecnativa - Ernesto Tejeda
+     License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl). -->
+<odoo>
+    <!-- Application -->
+    <record id="rma_module_category" model="ir.module.category">
+        <field name="name">RMA</field>
+        <field name="description">Manage Return Merchandise Authorizations (RMAs).</field>
+    </record>
+    <!-- Access Groups -->
+    <record id="rma_group_user_own" model="res.groups">
+        <field name="name">User: Own Documents Only</field>
+        <field name="category_id" ref="rma_module_category"/>
+        <field name="implied_ids" eval="[(4, ref('base.group_user'))]"/>
+        <field name="comment">the user will have access to his own data in the RMA application.</field>
+    </record>
+    <record id="rma_group_user_all" model="res.groups">
+        <field name="name">User: All Documents</field>
+        <field name="category_id" ref="rma_module_category"/>
+        <field name="implied_ids" eval="[(4, ref('rma_group_user_own'))]"/>
+        <field name="comment">the user will have access to all records of everyone in the RMA application.</field>
+    </record>
+    <record id="rma_group_manager" model="res.groups">
+        <field name="name">Manager</field>
+        <field name="comment">the user will have an access to the RMA configuration as well as statistic reports.</field>
+        <field name="category_id" ref="rma_module_category"/>
+        <field name="implied_ids" eval="[(4, ref('rma_group_user_all'))]"/>
+        <field name="users" eval="[(4, ref('base.user_root')), (4, ref('base.user_admin'))]"/>
+    </record>
+    <!-- Record Rules -->
+    <record id="rma_rule_user_own" model="ir.rule">
+        <field name="name">Personal RMAs</field>
+        <field ref="model_rma" name="model_id"/>
+        <field name="domain_force">['|',('user_id','=',user.id),('user_id','=',False)]</field>
+        <field name="groups" eval="[(4, ref('rma_group_user_own'))]"/>
+    </record>
+    <record id="rma_rule_user_all" model="ir.rule">
+        <field name="name">All RMAs</field>
+        <field ref="model_rma" name="model_id"/>
+        <field name="domain_force">[(1,'=',1)]</field>
+        <field name="groups" eval="[(4, ref('rma_group_user_all'))]"/>
+    </record>
+    <!-- Multi-Company Rules -->
+    <record id="rma_rule_multi_company" model="ir.rule">
+        <field name="name">RMA multi-company</field>
+        <field name="model_id" ref="model_rma"/>
+        <field name="global" eval="True"/>
+        <field name="domain_force">['|',('company_id','=',False),('company_id','child_of',[user.company_id.id])]</field>
+    </record>
+    <record id="rma_team_rule_multi_company" model="ir.rule">
+        <field name="name">RMA team multi-company</field>
+        <field name="model_id" ref="model_rma_team"/>
+        <field name="global" eval="True"/>
+        <field name="domain_force">['|',('company_id','=',False),('company_id','child_of',[user.company_id.id])]</field>
+    </record>
+    <!-- New users will belong to rma_group_user_own  -->
+    <record id="base.default_user" model="res.users">
+        <field name="groups_id" eval="[(4, ref('rma_group_user_own'))]"/>
+    </record>
+</odoo>

rma/static/description/index.html

@@ -0,0 +1,496 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+<meta name="generator" content="Docutils 0.15.1: http://docutils.sourceforge.net/" />
+<title>Return Merchandise Authorization Management</title>
+<style type="text/css">
+
+/*
+:Author: David Goodger (goodger@python.org)
+:Id: $Id: html4css1.css 7952 2016-07-26 18:15:59Z milde $
+:Copyright: This stylesheet has been placed in the public domain.
+
+Default cascading style sheet for the HTML output of Docutils.
+
+See http://docutils.sf.net/docs/howto/html-stylesheets.html for how to
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+
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+
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+  display: none }
+
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+  vertical-align: sub;
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+
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+  vertical-align: super;
+  font-size: smaller }
+
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+div.abstract p.topic-title {
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+div.admonition, div.attention, div.caution, div.danger, div.error,
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+  margin: 2em ;
+  border: medium outset ;
+  padding: 1em }
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+</head>
+<body>
+<div class="document" id="return-merchandise-authorization-management">
+<h1 class="title">Return Merchandise Authorization Management</h1>
+
+<!-- !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+!! This file is generated by oca-gen-addon-readme !!
+!! changes will be overwritten.                   !!
+!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -->
+<p><a class="reference external" href="https://odoo-community.org/page/development-status"><img alt="Beta" src="https://img.shields.io/badge/maturity-Beta-yellow.png" /></a> <a class="reference external" href="http://www.gnu.org/licenses/agpl-3.0-standalone.html"><img alt="License: AGPL-3" src="https://img.shields.io/badge/licence-AGPL--3-blue.png" /></a> <a class="reference external" href="https://github.com/OCA/rma/tree/12.0/rma"><img alt="OCA/rma" src="https://img.shields.io/badge/github-OCA%2Frma-lightgray.png?logo=github" /></a> <a class="reference external" href="https://translation.odoo-community.org/projects/rma-12-0/rma-12-0-rma"><img alt="Translate me on Weblate" src="https://img.shields.io/badge/weblate-Translate%20me-F47D42.png" /></a> <a class="reference external" href="https://runbot.odoo-community.org/runbot/145/12.0"><img alt="Try me on Runbot" src="https://img.shields.io/badge/runbot-Try%20me-875A7B.png" /></a></p>
+<p>This module allows you to manage <a class="reference external" href="https://en.wikipedia.org/wiki/Return_merchandise_authorization">Return Merchandise Authorization (RMA)</a>.
+RMA documents can be created from scratch, from a delivery order or from
+an incoming email. Product receptions and returning delivery operations
+of the RMA module are fully integrated with the Receipts and Deliveries
+Operations of Odoo inventory core module. It also allows you to generate
+refunds in the same way as Odoo generates it.
+Besides, you have full integration of the RMA documents in the customer portal.</p>
+<p><strong>Table of contents</strong></p>
+<div class="contents local topic" id="contents">
+<ul class="simple">
+<li><a class="reference internal" href="#configuration" id="id1">Configuration</a></li>
+<li><a class="reference internal" href="#usage" id="id2">Usage</a></li>
+<li><a class="reference internal" href="#known-issues-roadmap" id="id3">Known issues / Roadmap</a></li>
+<li><a class="reference internal" href="#bug-tracker" id="id4">Bug Tracker</a></li>
+<li><a class="reference internal" href="#credits" id="id5">Credits</a><ul>
+<li><a class="reference internal" href="#authors" id="id6">Authors</a></li>
+<li><a class="reference internal" href="#contributors" id="id7">Contributors</a></li>
+<li><a class="reference internal" href="#maintainers" id="id8">Maintainers</a></li>
+</ul>
+</li>
+</ul>
+</div>
+<div class="section" id="configuration">
+<h1><a class="toc-backref" href="#id1">Configuration</a></h1>
+<p>If you want RMAs to be created from incoming emails, you need to:</p>
+<ol class="arabic simple">
+<li>Go to <em>Settings &gt; General Settings</em>.</li>
+<li>Check ‘External Email Servers’ checkbox under <em>Discuss</em> section.</li>
+<li>Set an ‘alias domain’ and an incoming server.</li>
+<li>Go to <em>RMA &gt; Configuration &gt; RMA Team</em> and select a team or create a new
+one.</li>
+<li>Go to ‘Email’ tab and set an ‘Email Alias’.</li>
+</ol>
+</div>
+<div class="section" id="usage">
+<h1><a class="toc-backref" href="#id2">Usage</a></h1>
+<p>To use this module, you need to:</p>
+<ol class="arabic simple">
+<li>Go to <em>RMA &gt; Orders</em> and create a new RMA.</li>
+<li>Select a partner, an invoice address, select a product
+(or select a picking and a move instead), write a quantity, fill the rest
+of the form and click on ‘confirm’ button in the status bar.</li>
+<li>You will see an smart button labeled ‘Receipt’. Click on that button to see
+the reception operation form.</li>
+<li>If everything is right, validate the operation and go back to the RMA to
+see it in a ‘received’ state.</li>
+<li>Now you are able to generate a refund, generate a delivery order to return
+to the customer the same product or another product as a replacement, split
+the RMA by extracting a part of the remaining quantity to another RMA,
+preview the RMA in the website. All of these operations can be done by
+clicking on the buttons in the status bar.<ul>
+<li>If you click on ‘Refund’ button, a refund will be created, and it will be
+accessible via the smart button labeled Refund. The RMA will be set
+automatically to ‘Refunded’ state when the refund is validated.</li>
+<li>If you click on ‘Replace’ or ‘Return to customer’ button instead,
+a popup wizard will guide you to create a Delivery order to the client
+and this order will be accessible via the smart button labeled Delivery.
+The RMA will be set automatically to ‘Replaced’ or ‘Returned’ state when
+the RMA quantity is equal or lower than the quantity in done delivery
+orders linked to it.</li>
+</ul>
+</li>
+</ol>
+<p>An RMA can also be created from a return of a delivery order:</p>
+<ol class="arabic simple">
+<li>Select a delivery order and click on ‘Return’ button to create a return.</li>
+<li>Check “Create RMAs” checkbox in the returning wizard, select the RMA
+stock location and click on ‘Return’ button.</li>
+<li>An RMA will be created for each product returned in the previous step.
+Every RMA will be in confirmed state and they will
+be linked to the returning operation generated previously.</li>
+</ol>
+<p><strong>Note: An RMA can also be created from an incoming email (See configuration
+section).</strong></p>
+</div>
+<div class="section" id="known-issues-roadmap">
+<h1><a class="toc-backref" href="#id3">Known issues / Roadmap</a></h1>
+<ul class="simple">
+<li>As soon as the picking is selected, the user should select the move,
+but perhaps stock.move _rec_name could be improved to better show what
+the product of that move is.</li>
+</ul>
+</div>
+<div class="section" id="bug-tracker">
+<h1><a class="toc-backref" href="#id4">Bug Tracker</a></h1>
+<p>Bugs are tracked on <a class="reference external" href="https://github.com/OCA/rma/issues">GitHub Issues</a>.
+In case of trouble, please check there if your issue has already been reported.
+If you spotted it first, help us smashing it by providing a detailed and welcomed
+<a class="reference external" href="https://github.com/OCA/rma/issues/new?body=module:%20rma%0Aversion:%2012.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**">feedback</a>.</p>
+<p>Do not contact contributors directly about support or help with technical issues.</p>
+</div>
+<div class="section" id="credits">
+<h1><a class="toc-backref" href="#id5">Credits</a></h1>
+<div class="section" id="authors">
+<h2><a class="toc-backref" href="#id6">Authors</a></h2>
+<ul class="simple">
+<li>Tecnativa</li>
+</ul>
+</div>
+<div class="section" id="contributors">
+<h2><a class="toc-backref" href="#id7">Contributors</a></h2>
+<ul class="simple">
+<li><a class="reference external" href="https://www.tecnativa.com">Tecnativa</a>:<ul>
+<li>Ernesto Tejeda</li>
+<li>Pedro M. Baeza</li>
+<li>David Vidal</li>
+</ul>
+</li>
+</ul>
+</div>
+<div class="section" id="maintainers">
+<h2><a class="toc-backref" href="#id8">Maintainers</a></h2>
+<p>This module is maintained by the OCA.</p>
+<a class="reference external image-reference" href="https://odoo-community.org"><img alt="Odoo Community Association" src="https://odoo-community.org/logo.png" /></a>
+<p>OCA, or the Odoo Community Association, is a nonprofit organization whose
+mission is to support the collaborative development of Odoo features and
+promote its widespread use.</p>
+<p>Current <a class="reference external" href="https://odoo-community.org/page/maintainer-role">maintainer</a>:</p>
+<p><a class="reference external" href="https://github.com/ernestotejeda"><img alt="ernestotejeda" src="https://github.com/ernestotejeda.png?size=40px" /></a></p>
+<p>This module is part of the <a class="reference external" href="https://github.com/OCA/rma/tree/12.0/rma">OCA/rma</a> project on GitHub.</p>
+<p>You are welcome to contribute. To learn how please visit <a class="reference external" href="https://odoo-community.org/page/Contribute">https://odoo-community.org/page/Contribute</a>.</p>
+</div>
+</div>
+</div>
+</body>
+</html>

rma/tests/__init__.py

@@ -0,0 +1,3 @@
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from . import test_rma

rma/tests/test_rma.py

@@ -0,0 +1,638 @@
+# Copyright 2020 Tecnativa - Ernesto Tejeda
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo.tests import Form, SavepointCase
+from odoo.exceptions import UserError, ValidationError
+
+
+class TestRma(SavepointCase):
+
+    @classmethod
+    def setUpClass(cls):
+        super(TestRma, cls).setUpClass()
+        cls.res_partner = cls.env['res.partner']
+        cls.product_product = cls.env['product.product']
+        cls.company = cls.env.user.company_id
+        cls.warehouse_company = cls.env['stock.warehouse'].search(
+            [('company_id', '=', cls.company.id)], limit=1)
+        cls.rma_loc = cls.warehouse_company.rma_loc_id
+        account_pay = cls.env['account.account'].create({
+            'code': 'X1111',
+            'name': 'Creditors - (test)',
+            'user_type_id': cls.env.ref(
+                'account.data_account_type_payable').id,
+            'reconcile': True,
+        })
+        cls.journal = cls.env['account.journal'].create({
+            'name': 'sale_0',
+            'code': 'SALE0',
+            'type': 'sale',
+            'default_debit_account_id': account_pay.id,
+        })
+        cls.product = cls.product_product.create({
+            'name': 'Product test 1',
+            'type': 'product',
+        })
+        account_type = cls.env['account.account.type'].create({
+            'name': 'RCV type',
+            'type': 'receivable',
+        })
+        cls.account_receiv = cls.env['account.account'].create({
+            'name': 'Receivable',
+            'code': 'RCV00',
+            'user_type_id': account_type.id,
+            'reconcile': True,
+        })
+        cls.partner = cls.res_partner.create({
+            'name': 'Partner test',
+            'property_account_receivable_id': cls.account_receiv.id,
+        })
+        cls.partner_invoice = cls.res_partner.create({
+            'name': 'Partner invoice test',
+            'parent_id': cls.partner.id,
+            'type': 'invoice',
+        })
+
+    def _create_rma(self, partner=None, product=None, qty=None, location=None):
+        rma_form = Form(self.env['rma'])
+        if partner:
+            rma_form.partner_id = partner
+        if product:
+            rma_form.product_id = product
+        if qty:
+            rma_form.product_uom_qty = qty
+        if location:
+            rma_form.location_id = location
+        return rma_form.save()
+
+    def _create_confirm_receive(self, partner=None, product=None, qty=None,
+                                location=None):
+        rma = self._create_rma(partner, product, qty, location)
+        rma.action_confirm()
+        rma.reception_move_id.quantity_done = rma.product_uom_qty
+        rma.reception_move_id.picking_id.action_done()
+        return rma
+
+    def _test_readonly_fields(self, rma):
+        with Form(rma) as rma_form:
+            with self.assertRaises(AssertionError):
+                rma_form.partner_id = self.env['res.partner']
+            with self.assertRaises(AssertionError):
+                rma_form.partner_invoice_id = self.env['res.partner']
+            with self.assertRaises(AssertionError):
+                rma_form.picking_id = self.env['stock.picking']
+            with self.assertRaises(AssertionError):
+                rma_form.move_id = self.env['stock.move']
+            with self.assertRaises(AssertionError):
+                rma_form.product_id = self.env['product.product']
+            with self.assertRaises(AssertionError):
+                rma_form.product_uom_qty = 0
+            with self.assertRaises(AssertionError):
+                rma_form.product_uom = self.env['uom.uom']
+            with self.assertRaises(AssertionError):
+                rma_form.location_id = self.env['stock.location']
+
+    def _create_delivery(self):
+        picking_type = self.env['stock.picking.type'].search(
+            [
+                ('code', '=', 'outgoing'),
+                '|',
+                ('warehouse_id.company_id', '=', self.company.id),
+                ('warehouse_id', '=', False)
+            ],
+            limit=1,
+        )
+        picking_form = Form(
+            recordp=self.env['stock.picking'].with_context(
+                default_picking_type_id=picking_type.id),
+            view="stock.view_picking_form",
+        )
+        picking_form.company_id = self.company
+        picking_form.partner_id = self.partner
+        with picking_form.move_ids_without_package.new() as move:
+            move.product_id = self.product
+            move.product_uom_qty = 10
+        with picking_form.move_ids_without_package.new() as move:
+            move.product_id = self.product_product.create(
+                {'name': 'Product 2 test', 'type': 'product'})
+            move.product_uom_qty = 20
+        picking = picking_form.save()
+        picking.action_confirm()
+        for move in picking.move_lines:
+            move.quantity_done = move.product_uom_qty
+        picking.button_validate()
+        return picking
+
+    def test_onchange(self):
+        rma_form = Form(self.env['rma'])
+        # If partner changes, the invoice address is set
+        rma_form.partner_id = self.partner
+        self.assertEqual(rma_form.partner_invoice_id, self.partner_invoice)
+        # If origin move changes, the product is set
+        uom_ten = self.env['uom.uom'].create({
+            'name': "Ten",
+            'category_id': self.env.ref('uom.product_uom_unit').id,
+            'factor_inv': 10,
+            'uom_type': 'bigger',
+        })
+        product_2 = self.product_product.create({
+            'name': 'Product test 2',
+            'type': 'product',
+            'uom_id': uom_ten.id,
+        })
+        outgoing_picking_type = self.env['stock.picking.type'].search(
+            [
+                ('code', '=', 'outgoing'),
+                '|',
+                ('warehouse_id.company_id', '=', self.company.id),
+                ('warehouse_id', '=', False)
+            ],
+            limit=1,
+        )
+        picking_form = Form(
+            recordp=self.env['stock.picking'].with_context(
+                default_picking_type_id=outgoing_picking_type.id),
+            view="stock.view_picking_form",
+        )
+        picking_form.company_id = self.company
+        picking_form.partner_id = self.partner
+        picking_form.partner_id = self.partner
+        with picking_form.move_ids_without_package.new() as move:
+            move.product_id = product_2
+            move.product_uom_qty = 15
+            move.product_uom = uom_ten
+        picking = picking_form.save()
+        picking.action_done()
+        rma_form.picking_id = picking
+        rma_form.move_id = picking.move_lines
+        self.assertEqual(rma_form.product_id, product_2)
+        self.assertEqual(rma_form.product_uom_qty, 15)
+        self.assertEqual(rma_form.product_uom, uom_ten)
+        # If product changes, unit of measure changes
+        rma_form.picking_id = self.env['stock.picking']
+        rma_form.product_id = self.product
+        self.assertEqual(rma_form.product_id, self.product)
+        self.assertEqual(rma_form.product_uom_qty, 15)
+        self.assertNotEqual(rma_form.product_uom, uom_ten)
+        self.assertEqual(rma_form.product_uom, self.product.uom_id)
+        rma = rma_form.save()
+        # If product changes, unit of measure domain should also change
+        domain = rma._onchange_product_id()['domain']['product_uom']
+        self.assertListEqual(
+            domain, [('category_id', '=', self.product.uom_id.category_id.id)])
+
+    def test_ensure_required_fields_on_confirm(self):
+        rma = self._create_rma()
+        with self.assertRaises(ValidationError) as e:
+            rma.action_confirm()
+        self.assertEqual(
+            e.exception.name,
+            "Required field(s):\nCustomer\nInvoice Address\nProduct\nLocation"
+        )
+        with Form(rma) as rma_form:
+            rma_form.partner_id = self.partner
+        with self.assertRaises(ValidationError) as e:
+            rma.action_confirm()
+        self.assertEqual(
+            e.exception.name, "Required field(s):\nProduct\nLocation")
+        with Form(rma) as rma_form:
+            rma_form.product_id = self.product
+            rma_form.location_id = self.rma_loc
+        rma.action_confirm()
+        self.assertEqual(rma.state, 'confirmed')
+
+    def test_confirm_and_receive(self):
+        rma = self._create_rma(self.partner, self.product, 10, self.rma_loc)
+        rma.action_confirm()
+        self.assertEqual(rma.reception_move_id.picking_id.state, 'assigned')
+        self.assertEqual(rma.reception_move_id.product_id, rma.product_id)
+        self.assertEqual(rma.reception_move_id.product_uom_qty, 10)
+        self.assertEqual(rma.reception_move_id.product_uom, rma.product_uom)
+        self.assertEqual(rma.state, 'confirmed')
+        self._test_readonly_fields(rma)
+        rma.reception_move_id.quantity_done = 9
+        with self.assertRaises(ValidationError):
+            rma.reception_move_id.picking_id.action_done()
+        rma.reception_move_id.quantity_done = 10
+        rma.reception_move_id.picking_id.action_done()
+        self.assertEqual(rma.reception_move_id.picking_id.state, 'done')
+        self.assertEqual(rma.reception_move_id.quantity_done, 10)
+        self.assertEqual(rma.state, 'received')
+        self._test_readonly_fields(rma)
+
+    def test_cancel(self):
+        # cancel a draft RMA
+        rma = self._create_rma(self.partner, self.product)
+        rma.action_cancel()
+        self.assertEqual(rma.state, 'cancelled')
+        self._test_readonly_fields(rma)
+        # cancel a confirmed RMA
+        rma = self._create_rma(self.partner, self.product, 10, self.rma_loc)
+        rma.action_confirm()
+        rma.action_cancel()
+        self.assertEqual(rma.state, 'cancelled')
+        # A RMA is only cancelled from draft and confirmed states
+        rma = self._create_confirm_receive(self.partner, self.product, 10,
+                                           self.rma_loc)
+        with self.assertRaises(UserError):
+            rma.action_cancel()
+
+    def test_lock_unlock(self):
+        # A RMA is only locked from 'received' state
+        rma_1 = self._create_rma(self.partner, self.product, 10, self.rma_loc)
+        rma_2 = self._create_confirm_receive(self.partner, self.product, 10,
+                                             self.rma_loc)
+        self.assertEqual(rma_1.state, 'draft')
+        self.assertEqual(rma_2.state, 'received')
+        (rma_1 | rma_2).action_lock()
+        self.assertEqual(rma_1.state, 'draft')
+        self.assertEqual(rma_2.state, 'locked')
+        # A RMA is only unlocked from 'lock' state and it will be set
+        # to 'received' state
+        (rma_1 | rma_2).action_unlock()
+        self.assertEqual(rma_1.state, 'draft')
+        self.assertEqual(rma_2.state, 'received')
+
+    def test_action_refund(self):
+        rma = self._create_confirm_receive(self.partner, self.product, 10,
+                                           self.rma_loc)
+        self.assertEqual(rma.state, 'received')
+        self.assertTrue(rma.can_be_refunded)
+        self.assertTrue(rma.can_be_returned)
+        self.assertTrue(rma.can_be_replaced)
+        rma.action_refund()
+        self.assertEqual(rma.refund_id.type, 'out_refund')
+        self.assertEqual(rma.refund_id.state, 'draft')
+        self.assertEqual(rma.refund_line_id.product_id, rma.product_id)
+        self.assertEqual(rma.refund_line_id.quantity, 10)
+        self.assertEqual(rma.refund_line_id.uom_id, rma.product_uom)
+        self.assertEqual(rma.state, 'waiting_refund')
+        self.assertFalse(rma.can_be_refunded)
+        self.assertFalse(rma.can_be_returned)
+        self.assertFalse(rma.can_be_replaced)
+        rma.refund_line_id.quantity = 9
+        with self.assertRaises(ValidationError):
+            rma.refund_id.action_invoice_open()
+        rma.refund_line_id.quantity = 10
+        rma.refund_id.action_invoice_open()
+        self.assertEqual(rma.state, 'refunded')
+        self.assertFalse(rma.can_be_refunded)
+        self.assertFalse(rma.can_be_returned)
+        self.assertFalse(rma.can_be_replaced)
+        self._test_readonly_fields(rma)
+
+    def test_mass_refund(self):
+        # Create, confirm and receive rma_1
+        rma_1 = self._create_confirm_receive(self.partner, self.product, 10,
+                                             self.rma_loc)
+        # create, confirm and receive 3 more RMAs
+        # rma_2: Same partner and same product as rma_1
+        rma_2 = self._create_confirm_receive(self.partner, self.product, 15,
+                                             self.rma_loc)
+        # rma_3: Same partner and different product than rma_1
+        product = self.product_product.create(
+            {'name': 'Product 2 test', 'type': 'product'})
+        rma_3 = self._create_confirm_receive(self.partner, product, 20,
+                                             self.rma_loc)
+        # rma_4: Different partner and same product as rma_1
+        partner = self.res_partner.create({
+            'name': 'Partner 2 test',
+            'property_account_receivable_id': self.account_receiv.id,
+            'company_id': self.company.id,
+        })
+        rma_4 = self._create_confirm_receive(partner, product, 25,
+                                             self.rma_loc)
+        # all rmas are ready to refund
+        all_rmas = (rma_1 | rma_2 | rma_3 | rma_4)
+        self.assertEqual(all_rmas.mapped('state'), ['received']*4)
+        self.assertEqual(all_rmas.mapped('can_be_refunded'), [True]*4)
+        # Mass refund of those four RMAs
+        action = self.env.ref('rma.rma_refund_action_server')
+        ctx = dict(self.env.context)
+        ctx.update(active_ids=all_rmas.ids, active_model='rma')
+        action.with_context(ctx).run()
+        # Two refunds were created
+        refund_1 = (rma_1 | rma_2 | rma_3).mapped('refund_id')
+        refund_2 = rma_4.refund_id
+        self.assertEqual(len(refund_1), 1)
+        self.assertEqual(len(refund_2), 1)
+        self.assertEqual((refund_1 | refund_2).mapped('state'), ['draft']*2)
+        # One refund per partner
+        self.assertNotEqual(refund_1.partner_id, refund_2.partner_id)
+        self.assertEqual(
+            refund_1.partner_id,
+            (rma_1 | rma_2 | rma_3).mapped('partner_invoice_id'),
+        )
+        self.assertEqual(refund_2.partner_id, rma_4.partner_invoice_id)
+        # Each RMA (rma_1, rma_2 and rma_3) is linked with a different
+        # line of refund_1
+        self.assertEqual(len(refund_1.invoice_line_ids), 3)
+        self.assertEqual(
+            refund_1.invoice_line_ids.mapped('rma_id'),
+            (rma_1 | rma_2 | rma_3),
+        )
+        self.assertEqual(
+            (rma_1 | rma_2 | rma_3).mapped('refund_line_id'),
+            refund_1.invoice_line_ids,
+        )
+        # rma_4 is linked with the unique line of refund_2
+        self.assertEqual(len(refund_2.invoice_line_ids), 1)
+        self.assertEqual(refund_2.invoice_line_ids.rma_id, rma_4)
+        self.assertEqual(rma_4.refund_line_id, refund_2.invoice_line_ids)
+        # Assert product and quantities are propagated correctly
+        for rma in all_rmas:
+            self.assertEqual(rma.product_id, rma.refund_line_id.product_id)
+            self.assertEqual(rma.product_uom_qty, rma.refund_line_id.quantity)
+            self.assertEqual(rma.product_uom, rma.refund_line_id.uom_id)
+        # Less quantity -> error on confirm
+        rma_2.refund_line_id.quantity = 14
+        with self.assertRaises(ValidationError):
+            refund_1.action_invoice_open()
+        rma_2.refund_line_id.quantity = 15
+        refund_1.action_invoice_open()
+        refund_2.action_invoice_open()
+        self.assertEqual(all_rmas.mapped('state'), ['refunded']*4)
+
+    def test_replace(self):
+        # Create, confirm and receive an RMA
+        rma = self._create_confirm_receive(self.partner, self.product, 10,
+                                           self.rma_loc)
+        # Replace with another product with quantity 2.
+        product_2 = self.product_product.create(
+            {'name': 'Product 2 test', 'type': 'product'})
+        delivery_form = Form(
+            self.env['rma.delivery.wizard'].with_context(
+                active_ids=rma.ids,
+                rma_delivery_type='replace',
+            )
+        )
+        delivery_form.product_id = product_2
+        delivery_form.product_uom_qty = 2
+        delivery_wizard = delivery_form.save()
+        delivery_wizard.action_deliver()
+        self.assertEqual(len(rma.delivery_move_ids.picking_id.move_lines), 1)
+        self.assertEqual(rma.delivery_move_ids.product_id, product_2)
+        self.assertEqual(rma.delivery_move_ids.product_uom_qty, 2)
+        self.assertTrue(rma.delivery_move_ids.picking_id.state, 'waiting')
+        self.assertEqual(rma.state, 'waiting_replacement')
+        self.assertFalse(rma.can_be_refunded)
+        self.assertFalse(rma.can_be_returned)
+        self.assertTrue(rma.can_be_replaced)
+        self.assertEqual(rma.delivered_qty, 2)
+        self.assertEqual(rma.remaining_qty, 8)
+        self.assertEqual(rma.delivered_qty_done, 0)
+        self.assertEqual(rma.remaining_qty_to_done, 10)
+        first_move = rma.delivery_move_ids
+        picking = first_move.picking_id
+        # Replace again with another product with the remaining quantity
+        product_3 = self.product_product.create(
+            {'name': 'Product 3 test', 'type': 'product'})
+        delivery_form = Form(
+            self.env['rma.delivery.wizard'].with_context(
+                active_ids=rma.ids,
+                rma_delivery_type='replace',
+            )
+        )
+        delivery_form.product_id = product_3
+        delivery_wizard = delivery_form.save()
+        delivery_wizard.action_deliver()
+        second_move = rma.delivery_move_ids - first_move
+        self.assertEqual(len(rma.delivery_move_ids), 2)
+        self.assertEqual(rma.delivery_move_ids.mapped('picking_id'), picking)
+        self.assertEqual(first_move.product_id, product_2)
+        self.assertEqual(first_move.product_uom_qty, 2)
+        self.assertEqual(second_move.product_id, product_3)
+        self.assertEqual(second_move.product_uom_qty, 8)
+        self.assertTrue(picking.state, 'waiting')
+        self.assertEqual(rma.delivered_qty, 10)
+        self.assertEqual(rma.remaining_qty, 0)
+        self.assertEqual(rma.delivered_qty_done, 0)
+        self.assertEqual(rma.remaining_qty_to_done, 10)
+        # remaining_qty is 0 but rma is not set to 'replaced' until
+        # remaining_qty_to_done is less than or equal to 0
+        first_move.quantity_done = 2
+        second_move.quantity_done = 8
+        picking.button_validate()
+        self.assertEqual(picking.state, 'done')
+        self.assertEqual(rma.delivered_qty, 10)
+        self.assertEqual(rma.remaining_qty, 0)
+        self.assertEqual(rma.delivered_qty_done, 10)
+        self.assertEqual(rma.remaining_qty_to_done, 0)
+        # The RMA is now in 'replaced' state
+        self.assertEqual(rma.state, 'replaced')
+        self.assertFalse(rma.can_be_refunded)
+        self.assertFalse(rma.can_be_returned)
+        # Despite being in 'replaced' state,
+        # RMAs can still perform replacements.
+        self.assertTrue(rma.can_be_replaced)
+        self._test_readonly_fields(rma)
+
+    def test_return_to_customer(self):
+        # Create, confirm and receive an RMA
+        rma = self._create_confirm_receive(self.partner, self.product, 10,
+                                           self.rma_loc)
+        # Return the same product with quantity 2 to the customer.
+        delivery_form = Form(
+            self.env['rma.delivery.wizard'].with_context(
+                active_ids=rma.ids,
+                rma_delivery_type='return',
+            )
+        )
+        delivery_form.product_uom_qty = 2
+        delivery_wizard = delivery_form.save()
+        delivery_wizard.action_deliver()
+        picking = rma.delivery_move_ids.picking_id
+        self.assertEqual(len(picking.move_lines), 1)
+        self.assertEqual(rma.delivery_move_ids.product_id, self.product)
+        self.assertEqual(rma.delivery_move_ids.product_uom_qty, 2)
+        self.assertTrue(picking.state, 'waiting')
+        self.assertEqual(rma.state, 'waiting_return')
+        self.assertFalse(rma.can_be_refunded)
+        self.assertFalse(rma.can_be_replaced)
+        self.assertTrue(rma.can_be_returned)
+        self.assertEqual(rma.delivered_qty, 2)
+        self.assertEqual(rma.remaining_qty, 8)
+        self.assertEqual(rma.delivered_qty_done, 0)
+        self.assertEqual(rma.remaining_qty_to_done, 10)
+        first_move = rma.delivery_move_ids
+        picking = first_move.picking_id
+        # Validate the picking
+        first_move.quantity_done = 2
+        picking.button_validate()
+        self.assertEqual(picking.state, 'done')
+        self.assertEqual(rma.delivered_qty, 2)
+        self.assertEqual(rma.remaining_qty, 8)
+        self.assertEqual(rma.delivered_qty_done, 2)
+        self.assertEqual(rma.remaining_qty_to_done, 8)
+        # Return the remaining quantity to the customer
+        delivery_form = Form(
+            self.env['rma.delivery.wizard'].with_context(
+                active_ids=rma.ids,
+                rma_delivery_type='return',
+            )
+        )
+        delivery_wizard = delivery_form.save()
+        delivery_wizard.action_deliver()
+        second_move = rma.delivery_move_ids - first_move
+        second_move.quantity_done = 8
+        self.assertEqual(rma.delivered_qty, 10)
+        self.assertEqual(rma.remaining_qty, 0)
+        self.assertEqual(rma.delivered_qty_done, 2)
+        self.assertEqual(rma.remaining_qty_to_done, 8)
+        self.assertEqual(rma.state, 'waiting_return')
+        # remaining_qty is 0 but rma is not set to 'returned' until
+        # remaining_qty_to_done is less than or equal to 0
+        picking_2 = second_move.picking_id
+        picking_2.button_validate()
+        self.assertEqual(picking_2.state, 'done')
+        self.assertEqual(rma.delivered_qty, 10)
+        self.assertEqual(rma.remaining_qty, 0)
+        self.assertEqual(rma.delivered_qty_done, 10)
+        self.assertEqual(rma.remaining_qty_to_done, 0)
+        # The RMA is now in 'returned' state
+        self.assertEqual(rma.state, 'returned')
+        self.assertFalse(rma.can_be_refunded)
+        self.assertFalse(rma.can_be_returned)
+        self.assertFalse(rma.can_be_replaced)
+        self._test_readonly_fields(rma)
+
+    def test_mass_return_to_customer(self):
+        # Create, confirm and receive rma_1
+        rma_1 = self._create_confirm_receive(self.partner, self.product, 10,
+                                             self.rma_loc)
+        # create, confirm and receive 3 more RMAs
+        # rma_2: Same partner and same product as rma_1
+        rma_2 = self._create_confirm_receive(self.partner, self.product, 15,
+                                             self.rma_loc)
+        # rma_3: Same partner and different product than rma_1
+        product = self.product_product.create(
+            {'name': 'Product 2 test', 'type': 'product'})
+        rma_3 = self._create_confirm_receive(self.partner, product, 20,
+                                             self.rma_loc)
+        # rma_4: Different partner and same product as rma_1
+        partner = self.res_partner.create({'name': 'Partner 2 test'})
+        rma_4 = self._create_confirm_receive(partner, product, 25,
+                                             self.rma_loc)
+        # all rmas are ready to be returned to the customer
+        all_rmas = (rma_1 | rma_2 | rma_3 | rma_4)
+        self.assertEqual(all_rmas.mapped('state'), ['received'] * 4)
+        self.assertEqual(all_rmas.mapped('can_be_returned'), [True] * 4)
+        # Mass return of those four RMAs
+        delivery_wizard = self.env['rma.delivery.wizard'].with_context(
+            active_ids=all_rmas.ids, rma_delivery_type='return').create({})
+        delivery_wizard.action_deliver()
+        # Two pickings were created
+        pick_1 = (rma_1 | rma_2 | rma_3).mapped('delivery_move_ids.picking_id')
+        pick_2 = rma_4.delivery_move_ids.picking_id
+        self.assertEqual(len(pick_1), 1)
+        self.assertEqual(len(pick_2), 1)
+        self.assertNotEqual(pick_1, pick_2)
+        self.assertEqual((pick_1 | pick_2).mapped('state'), ['assigned'] * 2)
+        # One picking per partner
+        self.assertNotEqual(pick_1.partner_id, pick_2.partner_id)
+        self.assertEqual(
+            pick_1.partner_id,
+            (rma_1 | rma_2 | rma_3).mapped('partner_id'),
+        )
+        self.assertEqual(pick_2.partner_id, rma_4.partner_id)
+        # Each RMA of (rma_1, rma_2 and rma_3) is linked to a different
+        # line of picking_1
+        self.assertEqual(len(pick_1.move_lines), 3)
+        self.assertEqual(
+            pick_1.move_lines.mapped('rma_id'),
+            (rma_1 | rma_2 | rma_3),
+        )
+        self.assertEqual(
+            (rma_1 | rma_2 | rma_3).mapped('delivery_move_ids'),
+            pick_1.move_lines,
+        )
+        # rma_4 is linked with the unique move of pick_2
+        self.assertEqual(len(pick_2.move_lines), 1)
+        self.assertEqual(pick_2.move_lines.rma_id, rma_4)
+        self.assertEqual(rma_4.delivery_move_ids, pick_2.move_lines)
+        # Assert product and quantities are propagated correctly
+        for rma in all_rmas:
+            self.assertEqual(rma.product_id, rma.delivery_move_ids.product_id)
+            self.assertEqual(rma.product_uom_qty,
+                             rma.delivery_move_ids.product_uom_qty)
+            self.assertEqual(rma.product_uom,
+                             rma.delivery_move_ids.product_uom)
+            rma.delivery_move_ids.quantity_done = rma.product_uom_qty
+        pick_1.button_validate()
+        pick_2.button_validate()
+        self.assertEqual(all_rmas.mapped('state'), ['returned'] * 4)
+
+    def test_rma_from_picking_return(self):
+        # Create a return from a delivery picking
+        origin_delivery = self._create_delivery()
+        return_wizard = self.env['stock.return.picking'].with_context(
+            active_id=origin_delivery.id,
+            active_ids=origin_delivery.ids,
+        ).create({'create_rma': True})
+        picking_action = return_wizard.create_returns()
+        # Each origin move is linked to a different RMA
+        origin_moves = origin_delivery.move_lines
+        self.assertTrue(origin_moves[0].rma_ids)
+        self.assertTrue(origin_moves[1].rma_ids)
+        rmas = origin_moves.mapped('rma_ids')
+        self.assertEqual(rmas.mapped('state'), ['confirmed']*2)
+        # Each reception move is linked one of the generated RMAs
+        reception = self.env['stock.picking'].browse(picking_action['res_id'])
+        reception_moves = reception.move_lines
+        self.assertTrue(reception_moves[0].rma_receiver_ids)
+        self.assertTrue(reception_moves[1].rma_receiver_ids)
+        self.assertEqual(reception_moves.mapped('rma_receiver_ids'), rmas)
+        # Validate the reception picking to set rmas to 'received' state
+        reception_moves[0].quantity_done = reception_moves[0].product_uom_qty
+        reception_moves[1].quantity_done = reception_moves[1].product_uom_qty
+        reception.button_validate()
+        self.assertEqual(rmas.mapped('state'), ['received'] * 2)
+
+    def test_split(self):
+        origin_delivery = self._create_delivery()
+        rma_form = Form(self.env['rma'])
+        rma_form.partner_id = self.partner
+        rma_form.picking_id = origin_delivery
+        rma_form.move_id = origin_delivery.move_lines.filtered(
+            lambda r: r.product_id == self.product)
+        rma = rma_form.save()
+        rma.action_confirm()
+        rma.reception_move_id.quantity_done = 10
+        rma.reception_move_id.picking_id.action_done()
+        # Return quantity 4 of the same product to the customer
+        delivery_form = Form(
+            self.env['rma.delivery.wizard'].with_context(
+                active_ids=rma.ids,
+                rma_delivery_type='return',
+            )
+        )
+        delivery_form.product_uom_qty = 4
+        delivery_wizard = delivery_form.save()
+        delivery_wizard.action_deliver()
+        rma.delivery_move_ids.quantity_done = 4
+        rma.delivery_move_ids.picking_id.button_validate()
+        self.assertEqual(rma.state, 'waiting_return')
+        # Extract the remaining quantity to another RMA
+        self.assertTrue(rma.can_be_split)
+        split_wizard = self.env['rma.split.wizard'].with_context(
+            active_id=rma.id,
+            active_ids=rma.ids,
+        ).create({})
+        action = split_wizard.action_split()
+        # Check rma is set to 'returned' after split. Check new_rma values
+        self.assertEqual(rma.state, 'returned')
+        new_rma = self.env['rma'].browse(action['res_id'])
+        self.assertEqual(new_rma.origin_split_rma_id, rma)
+        self.assertEqual(new_rma.delivered_qty, 0)
+        self.assertEqual(new_rma.remaining_qty, 6)
+        self.assertEqual(new_rma.delivered_qty_done, 0)
+        self.assertEqual(new_rma.remaining_qty_to_done, 6)
+        self.assertEqual(new_rma.state, 'received')
+        self.assertTrue(new_rma.can_be_refunded)
+        self.assertTrue(new_rma.can_be_returned)
+        self.assertTrue(new_rma.can_be_replaced)
+        self.assertEqual(new_rma.move_id, rma.move_id)
+        self.assertEqual(new_rma.reception_move_id, rma.reception_move_id)
+        self.assertEqual(new_rma.product_uom_qty + rma.product_uom_qty, 10)
+        self.assertEqual(new_rma.move_id.quantity_done, 10)
+        self.assertEqual(new_rma.reception_move_id.quantity_done, 10)

rma/views/menus.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2020 Tecnativa - Ernesto Tejeda
+     License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl). -->
+<odoo>
+    <menuitem
+        id="rma_menu"
+        name="RMA"
+        web_icon="rma,static/description/icon.png"/>
+    <menuitem
+        id="rma_orders_menu"
+        parent="rma_menu"
+        name="Orders"
+        sequence="10"/>
+    <menuitem
+        id="rma_reporting_menu"
+        parent="rma_menu"
+        name="Reporting"
+        sequence="20"/>
+    <menuitem
+        id="rma_configuration_menu"
+        parent="rma_menu"
+        name="Configuration"
+        sequence="30"/>
+</odoo>

rma/views/report_rma.xml

@@ -0,0 +1,96 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<odoo>
+    <template id="report_rma_document">
+        <t t-call="web.external_layout">
+            <t t-set="doc" t-value="doc.with_context(lang=doc.partner_id.lang)" />
+            <t t-if="doc.partner_id">
+                <t t-set="address">
+                    <div t-field="doc.partner_id"
+                        t-options='{"widget": "contact", "fields": ["address", "name"], "no_marker": True}' />
+                    <p t-if="doc.partner_id.vat"><t t-esc="doc.company_id.country_id.vat_label or 'Tax ID'"/>: <span t-field="doc.partner_id.vat"/></p>
+                </t>
+            </t>
+            <t t-if="(doc.partner_id or doc.partner_invoice_id) and doc.partner_id != doc.partner_invoice_id">
+                <t t-set="information_block">
+                    <strong>Invoicing address:</strong>
+                    <div t-field="doc.partner_invoice_id"
+                    t-options='{"widget": "contact", "fields": ["address", "name", "phone"], "no_marker": True, "phone_icons": True}'/>
+                </t>
+            </t>
+            <div class="page">
+                <h2 class="mt16">
+                    <span t-if="doc.state not in ['draft', 'cancelled']">RMA # </span>
+                    <span t-field="doc.name"/>
+                </h2>
+                <div class="row mt32 mb32" id="general_information">
+                    <div t-if="doc.origin" class="col-auto mw-100 mb-2">
+                        <strong>Origin:</strong>
+                        <p class="m-0" t-field="doc.origin"/>
+                    </div>
+                    <div class="col-auto mw-100 mb-2">
+                        <strong>Date:</strong>
+                        <p class="m-0" t-field="doc.date"/>
+                    </div>
+                    <div t-if="doc.deadline" class="col-auto mw-100 mb-2">
+                        <strong>Deadline:</strong>
+                        <p class="m-0" t-field="doc.deadline"/>
+                    </div>
+                    <div t-if="doc.user_id" class="col-auto mw-100 mb-2">
+                        <strong>Responsible:</strong>
+                        <p class="m-0" t-field="doc.user_id"/>
+                    </div>
+                    <div class="col-auto mw-100 mb-2">
+                        <strong>State:</strong>
+                        <p class="m-0">
+                            <t t-if="doc.state in ['refunded', 'replaced', 'returned']">
+                                <span class="small text-success orders_label_text_align"><i class="fa fa-fw fa-check"/> <b><span t-field="doc.state"/></b></span>
+                            </t>
+                            <t t-elif="doc.state in ['cancelled', 'locked']">
+                                <span class="small text-danger orders_label_text_align"><i class="fa fa-fw fa-times"/> <b><span t-field="doc.state"/></b></span>
+                            </t>
+                            <t t-else="">
+                                <span class="small text-info orders_label_text_align"><i class="fa fa-fw fa-clock-o"/> <b><span t-field="doc.state"/></b></span>
+                            </t>
+                        </p>
+                    </div>
+                </div>
+                <div class="row mt32 mb32" id="product_information">
+                    <div t-if="doc.picking_id" class="col-auto mw-100 mb-2">
+                        <strong>Origin delivery:</strong>
+                        <p class="m-0" t-field="doc.picking_id"/>
+                    </div>
+                    <div t-if="doc.move_id" class="col-auto mw-100 mb-2">
+                        <strong>Move:</strong>
+                        <p class="m-0" t-field="doc.move_id"/>
+                    </div>
+                    <div t-if="doc.product_id" class="col-auto mw-100 mb-2">
+                        <strong>Product:</strong>
+                        <p class="m-0" t-field="doc.product_id"/>
+                    </div>
+                    <div t-if="doc.product_id" class="col-auto mw-100 mb-2">
+                        <strong>Quantity:</strong>
+                        <p class="m-0" t-field="doc.product_uom_qty">
+                            <span t-field="doc.product_uom_qty"/>
+                            <span t-field="doc.uom_id"  groups="uom.group_uom"/>
+                        </p>
+                    </div>
+                    <div t-if="doc.delivered_qty" class="col-auto mw-100 mb-2">
+                        <strong>Delivered qty:</strong>
+                        <p class="m-0" t-field="doc.delivered_qty"/>
+                    </div>
+                </div>
+                <div t-if="doc.description">
+                    <strong>RMA Note:</strong>
+                    <p t-field="doc.description" />
+                </div>
+            </div>
+        </t>
+    </template>
+    <template id="report_rma">
+        <t t-call="web.html_container">
+            <t t-foreach="docs" t-as="doc">
+                <t t-call="rma.report_rma_document" t-lang="doc.partner_id.lang" />
+            </t>
+        </t>
+    </template>
+</odoo>

rma/views/res_partner_views.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2020 Tecnativa - Ernesto Tejeda
+     License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl). -->
+<odoo>
+    <record id="view_partner_form" model="ir.ui.view">
+        <field name="name">res.partner.form</field>
+        <field name="model">res.partner</field>
+        <field name="inherit_id" ref="base.view_partner_form"/>
+        <field name="arch" type="xml">
+            <div name="button_box">
+                <button name="action_view_rma"
+                        type="object"
+                        class="oe_stat_button"
+                        icon="fa-reply"
+                        attrs="{'invisible': [('rma_count', '=', 0)]}">
+                    <field name="rma_count"
+                           widget="statinfo"
+                           string="RMA"/>
+                </button>
+            </div>
+        </field>
+    </record>
+</odoo>

rma/views/rma_portal_templates.xml

@@ -0,0 +1,269 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2020 Tecnativa - Ernesto Tejeda
+     License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl). -->
+<odoo>
+    <template id="portal_my_home_menu_rma" name="Portal layout : RMA menu entries" inherit_id="portal.portal_breadcrumbs" priority="35">
+        <xpath expr="//ol[hasclass('o_portal_submenu')]" position="inside">
+            <li t-if="page_name == 'RMA'" t-attf-class="breadcrumb-item #{'active ' if not rma else ''}">
+                <a t-if="rma" t-attf-href="/my/rmas?{{ keep_query() }}">RMA Orders</a>
+                <t t-else="">RMA Orders</t>
+            </li>
+            <li t-if="rma" class="breadcrumb-item active">
+                <t t-esc="rma.name"/>
+            </li>
+        </xpath>
+    </template>
+
+    <template id="portal_my_home_rma" name="Portal My Home : RMA entries" inherit_id="portal.portal_my_home" priority="30">
+        <xpath expr="//div[hasclass('o_portal_docs')]" position="inside">
+            <t t-call="portal.portal_docs_entry">
+                <t t-set="title">RMA Orders</t>
+                <t t-set="url" t-value="'/my/rmas'"/>
+                <t t-set="count" t-value="rma_count"/>
+            </t>
+        </xpath>
+    </template>
+
+    <template id="portal_my_rmas" name="My RMA Orders">
+      <t t-call="portal.portal_layout">
+        <t t-set="breadcrumbs_searchbar" t-value="True"/>
+
+        <t t-call="portal.portal_searchbar">
+            <t t-set="title">RMA Orders</t>
+        </t>
+        <t t-if="rmas" t-call="portal.portal_table">
+            <thead>
+                <tr class="active">
+                    <th>RMA #</th>
+                    <th class='d-none d-md-table-cell'>Date</th>
+                    <th>Product</th>
+                    <th class='text-right'>Quantity</th>
+                    <th class='d-none d-md-table-cell'>Status</th>
+                </tr>
+            </thead>
+            <tbody>
+                <t t-foreach="rmas" t-as="rma">
+                    <tr>
+                        <td>
+                            <a t-att-href="rma.get_portal_url()" t-att-title="rma.name">
+                                <t t-esc="rma.name"/>
+                            </a>
+                        </td>
+                        <td class="d-none d-md-table-cell"><span t-field="rma.date"/></td>
+                        <td><span t-field="rma.product_id.name"/></td>
+                        <td class='text-right'><span t-field="rma.product_uom_qty"/></td>
+                        <td class="d-none d-md-table-cell tx_status">
+                            <span class="badge badge-pill badge-secondary"><span t-field="rma.state"/></span>
+                        </td>
+                    </tr>
+                </t>
+            </tbody>
+        </t>
+      </t>
+    </template>
+
+    <template id="portal_rma_page" name="My RMA">
+        <t t-call="portal.portal_layout">
+            <t t-set="o_portal_fullwidth_alert" groups="rma.rma_group_user_own">
+                <t t-call="portal.portal_back_in_edit_mode">
+                    <t t-set="backend_url" t-value="'/web#return_label=Website&amp;model=rma&amp;id=%s&amp;view_type=form' % (rma.id)"/>
+                </t>
+            </t>
+
+            <t t-call="portal.portal_record_layout">
+                <t t-set="card_header">
+                    <h5 class="mb-0">
+                        <span>
+                            RMA Order - <span t-field="rma.name"/>
+                        </span>
+                        <span style="position: absolute; left: 50%;" class="d-none d-sm-inline">
+                            <a t-att-href="rma.get_portal_url(report_type='pdf', download=True)">
+                                <i class="fa fa-download" role="img" aria-label="Download" title="Download"/>
+                            </a>
+                        </span>
+                        <span class="float-right">
+                            <t t-if="rma.state in ['refunded', 'returned', 'replaced']">
+                                <span class="small text-success orders_label_text_align"><i class="fa fa-fw fa-check"/> <b><span t-field="rma.state"/></b></span>
+                            </t>
+                            <t t-elif="rma.state in ['cancelled', 'locked']">
+                                <span class="small text-danger orders_label_text_align"><i class="fa fa-fw fa-times"/> <b><span t-field="rma.state"/></b></span>
+                            </t>
+                            <t t-else="">
+                                <span class="small text-info orders_label_text_align"><i class="fa fa-fw fa-clock-o"/> <b><span t-field="rma.state"/></b></span>
+                            </t>
+                        </span>
+                    </h5>
+                </t>
+                <t t-set="card_body">
+                    <div id="general_information">
+                        <div class="row mt4">
+                            <div t-if="rma.partner_id" class="col-12 col-md-6 mb-4 mb-md-0">
+                                <h6><strong>Customer:</strong></h6>
+                                <div class="row">
+                                    <div class="col flex-grow-0 pr-3">
+                                        <img t-if="rma.partner_id.image" class="rounded-circle mt-1 o_portal_contact_img" t-att-src="image_data_uri(rma.partner_id.image)" alt="Contact"/>
+                                        <img t-else="" class="rounded-circle mt-1 o_portal_contact_img" src="/web/static/src/img/user_menu_avatar.png" alt="Contact"/>
+                                    </div>
+                                    <div class="col pl-sm-0">
+                                        <address t-field="rma.partner_id" t-options='{"widget": "contact", "fields": ["name", "email", "phone"]}'/>
+                                    </div>
+                                </div>
+                            </div>
+                            <div t-if="rma.user_id" class="col-12 col-md-6">
+                                <h6><strong>Responsible:</strong></h6>
+                                <div class="row">
+                                    <div class="col flex-grow-0 pr-3">
+                                        <img t-if="rma.user_id.image" class="rounded-circle mt-1 o_portal_contact_img" t-att-src="image_data_uri(rma.user_id.image)" alt="Contact"/>
+                                        <img t-else="" class="rounded-circle mt-1 o_portal_contact_img" src="/web/static/src/img/user_menu_avatar.png" alt="Contact"/>
+                                    </div>
+                                    <div class="col pl-sm-0">
+                                        <address t-field="rma.user_id" t-options='{"widget": "contact", "fields": ["name", "email", "phone"]}'/>
+                                    </div>
+                                </div>
+                            </div>
+                        </div>
+                        <div class="row mt32" id="product_information">
+                            <div class="col-12 col-md-6 mb-4 mb-md-0">
+                                <div t-if="rma.picking_id" class="row mb-2 mb-sm-1">
+                                    <div class="col-12 col-sm-4">
+                                        <strong>Origin delivery</strong>
+                                    </div>
+                                    <div class="col-12 col-sm-8">
+                                        <span t-field="rma.picking_id"/>
+                                    </div>
+                                </div>
+                                <div t-if="rma.product_id" class="row mb-2 mb-sm-1">
+                                    <div class="col-12 col-sm-4">
+                                        <strong>Product</strong>
+                                    </div>
+                                    <div class="col-12 col-sm-8">
+                                        <span t-field="rma.product_id"/>
+                                    </div>
+                                </div>
+                                <div t-if="rma.product_uom_qty" class="row mb-2 mb-sm-1">
+                                    <div class="col-12 col-sm-4">
+                                        <strong>Quantity</strong>
+                                    </div>
+                                    <div class="col-12 col-sm-8">
+                                        <span t-field="rma.product_uom_qty"/>
+                                    </div>
+                                </div>
+                                <div t-if="rma.delivered_qty" class="row">
+                                    <div class="col-12 col-sm-4">
+                                        <strong>Delivered quantity</strong>
+                                    </div>
+                                    <div class="col-12 col-sm-8">
+                                        <span t-field="rma.delivered_qty"/>
+                                    </div>
+                                </div>
+                            </div>
+                            <div class="col-12 col-md-6">
+                                <div t-if="rma.date" class="row mb-2 mb-sm-1">
+                                    <div class="col-12 col-sm-4">
+                                        <strong>RMA Date</strong>
+                                    </div>
+                                    <div class="col-12 col-sm-8">
+                                        <span t-field="rma.date" t-options='{"widget": "date"}'/>
+                                    </div>
+                                </div>
+                                <div t-if="rma.deadline" class="row mb-2 mb-sm-1">
+                                    <div class="col-12 col-sm-4">
+                                        <strong>Deadline</strong>
+                                    </div>
+                                    <div class="col-12 col-sm-8">
+                                        <span t-field="rma.deadline" t-options='{"widget": "date"}'/>
+                                    </div>
+                                </div>
+                                <div t-if="rma.origin" class="row">
+                                    <div class="col-12 col-sm-4">
+                                        <strong>Origin</strong>
+                                    </div>
+                                    <div class="col-12 col-sm-8">
+                                        <span t-field="rma.origin"/>
+                                    </div>
+                                </div>
+                            </div>
+                        </div>
+                    </div>
+                    <section t-if="rma.reception_move_id" id="reception_section" style="page-break-inside: auto;" class="mt32">
+                        <strong class="d-block mb-1">Reception</strong>
+                        <t t-set="picking" t-value="rma.reception_move_id.picking_id"/>
+                        <t t-set="report_url" t-value="'/my/rma/picking/pdf/%s?%s' % (picking.id, keep_query())"/>
+                        <a class="list-group-item list-group-item-action d-flex flex-wrap align-items-center justify-content-between py-2 px-3" t-att-href="report_url">
+                            <div>
+                                <i class="fa fa-truck mr-1" role="img" aria-label="Download" title="Download"/>
+                                <span t-esc="picking.name" class="mr-lg-3"/>
+                                <div class="d-lg-inline-block">Date: <span class="text-muted" t-field="picking.date"/></div>
+                            </div>
+                            <t t-if="picking.state == 'done'">
+                                <span class="badge badge-success label-text-align"><i class="fa fa-fw fa-truck"/> Shipped</span>
+                            </t>
+                            <t t-if="picking.state == 'partially_available'">
+                                <span class="badge badge-warning label-text-align"><i class="fa fa-fw fa-clock-o"/> Partially Available</span>
+                            </t>
+                            <t t-if="picking.state == 'cancel'">
+                                <span class="badge badge-danger label-text-align"><i class="fa fa-fw fa-times"/> Cancelled</span>
+                            </t>
+                            <t t-if="picking.state in ['draft', 'waiting', 'confirmed', 'assigned']">
+                                <span class="badge badge-info label-text-align"><i class="fa fa-fw fa-clock-o"/> Preparation</span>
+                            </t>
+                        </a>
+                    </section>
+                    <section t-if="rma.refund_id" id="refund_section" style="page-break-inside: auto;" class="mt32">
+                        <strong class="d-block mb-1">Refund</strong>
+                        <t t-set="refund" t-value="rma.refund_id"/>
+                        <t t-set="report_url" t-value="refund.get_portal_url(report_type='pdf')"/>
+                        <a class="list-group-item list-group-item-action d-flex flex-wrap align-items-center justify-content-between py-2 px-3" t-att-href="report_url">
+                            <div>
+                                <i class="fa fa-pencil-square-o mr-1" role="img" aria-label="Download" title="Download"/>
+                                <span t-esc="refund.number" class="mr-lg-3"/>
+                                <div class="d-lg-inline-block">Date: <span class="text-muted" t-field="refund.date_invoice"/></div>
+                            </div>
+                            <span t-if="refund.state == 'paid'" class="small text-success orders_label_text_align"><i class="fa fa-fw fa-check"/> <b>Paid</b></span>
+                            <span t-else="" class="small text-info orders_label_text_align"><i class="fa fa-fw fa-clock-o"/> <b>Waiting Payment</b></span>
+                        </a>
+                    </section>
+                    <section t-if="rma.delivery_move_ids" id="reception_section" style="page-break-inside: auto;" class="mt32">
+                        <strong class="d-block mb-1">Delivery</strong>
+                        <ul class="list-group mb-4">
+                            <t t-foreach="rma.delivery_move_ids.mapped('picking_id')" t-as="picking">
+                                <t t-set="report_url" t-value="'/my/rma/picking/pdf/%s?%s' % (picking.id, keep_query())"/>
+                                <a class="list-group-item list-group-item-action d-flex flex-wrap align-items-center justify-content-between py-2 px-3" t-att-href="report_url">
+                                    <div>
+                                        <i class="fa fa-truck mr-1" role="img" aria-label="Download" title="Download"/>
+                                        <span t-esc="picking.name" class="mr-lg-3"/>
+                                        <div class="d-lg-inline-block">Date: <span class="text-muted" t-field="picking.date"/></div>
+                                    </div>
+                                    <t t-if="picking.state == 'done'">
+                                        <span class="badge badge-success label-text-align"><i class="fa fa-fw fa-truck"/> Shipped</span>
+                                    </t>
+                                    <t t-if="picking.state == 'partially_available'">
+                                        <span class="badge badge-warning label-text-align"><i class="fa fa-fw fa-clock-o"/> Partially Available</span>
+                                    </t>
+                                    <t t-if="picking.state == 'cancel'">
+                                        <span class="badge badge-danger label-text-align"><i class="fa fa-fw fa-times"/> Cancelled</span>
+                                    </t>
+                                    <t t-if="picking.state in ['draft', 'waiting', 'confirmed', 'assigned']">
+                                        <span class="badge badge-info label-text-align"><i class="fa fa-fw fa-clock-o"/> Preparation</span>
+                                    </t>
+                                </a>
+                            </t>
+                        </ul>
+                    </section>
+                    <section id="description" class="mt-5" t-if="rma.description">
+                        <h3 class="">Description</h3>
+                        <hr class="mt-0 mb-1"/>
+                        <em t-field="rma.description"/>
+                    </section>
+                </t>
+            </t>
+            <!-- chatter -->
+            <div id="rma_communication" class="mt-4">
+                <h2>Communication</h2>
+                <t t-call="portal.message_thread">
+                    <t t-set="object" t-value="rma"/>
+                </t>
+            </div>
+        </t>
+    </template>
+</odoo>

rma/views/rma_team_views.xml

@@ -0,0 +1,90 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2020 Tecnativa - Ernesto Tejeda
+     License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl). -->
+<odoo>
+    <record id="rma_team_view_form" model="ir.ui.view">
+        <field name="name">rma.team.view.form</field>
+        <field name="model">rma.team</field>
+        <field name="arch" type="xml">
+            <form>
+                <sheet>
+                    <div class="oe_button_box" name="button_box">
+                        <button name="toggle_active" type="object" class="oe_stat_button" icon="fa-archive">
+                            <field name="active" widget="boolean_button" options='{"terminology": "archive"}'/>
+                        </button>
+                    </div>
+                    <div class="oe_title">
+                        <label for="name" class="oe_edit_only" string="RMA Team" />
+                        <h1>
+                            <field name="name" />
+                        </h1>
+                    </div>
+                    <group>
+                        <group>
+                            <field name="user_id" />
+                            <field name="company_id" options="{'no_create': True}" groups="base.group_multi_company" />
+                        </group>
+                    </group>
+                    <notebook>
+                        <page name="members" string="Team Members">
+                            <field name="member_ids" widget="many2many" options="{'not_delete': True}">
+                                <kanban quick_create="false" create="true" delete="true">
+                                    <field name="id"/>
+                                    <field name="name"/>
+                                    <templates>
+                                        <t t-name="kanban-box">
+                                            <div class="oe_kanban_global_click" style="max-width: 200px">
+                                                <div class="o_kanban_record_top">
+                                                    <img t-att-src="kanban_image('res.users', 'image_small', record.id.raw_value)" height="40" width="40" class="oe_avatar oe_kanban_avatar_smallbox mb0" alt="Avatar"/>
+                                                    <div class="o_kanban_record_headings ml8">
+                                                        <strong class="o_kanban_record_title"><field name="name"/></strong>
+                                                    </div>
+                                                </div>
+                                            </div>
+                                        </t>
+                                    </templates>
+                                </kanban>
+                            </field>
+                        </page>
+                        <page name="emails" string="Email" attrs="{'invisible': [('alias_domain', '=', False)]}">
+                            <group name="group_alias">
+                                <label for="alias_name" string="Email Alias"/>
+                                <div name="alias_def">
+                                    <field name="alias_id" class="oe_read_only oe_inline"
+                                            string="Email Alias" required="0"/>
+                                    <div class="oe_edit_only oe_inline" name="edit_alias" style="display: inline;" >
+                                        <field name="alias_name" class="oe_inline"/>@<field name="alias_domain" class="oe_inline" readonly="1"/>
+                                    </div>
+                                </div>
+                                <field name="alias_contact" class="oe_inline oe_edit_only"
+                                        string="Accept Emails From"/>
+                            </group>
+                        </page>
+                    </notebook>
+                </sheet>
+                <div class="oe_chatter">
+                    <field name="message_follower_ids" widget="mail_followers"/>
+                    <field name="message_ids" widget="mail_thread"/>
+                </div>
+            </form>
+        </field>
+    </record>
+
+    <record id="rma_team_action" model="ir.actions.act_window">
+        <field name="name">RMA team</field>
+        <field name="res_model">rma.team</field>
+        <field name="view_type">form</field>
+        <field name="view_mode">tree,form</field>
+        <field name="help" type="html">
+            <p class="o_view_nocontent_smiling_face">
+                Click to add a new RMA.
+            </p>
+        </field>
+    </record>
+
+    <menuitem
+        id="rma_configuration_rma_team_menu"
+        name="RMA Team"
+        parent="rma_configuration_menu"
+        action="rma_team_action"/>
+</odoo>

rma/views/rma_views.xml

@@ -0,0 +1,285 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2020 Tecnativa - Ernesto Tejeda
+     License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl). -->
+<odoo>
+    <record id="rma_view_search" model="ir.ui.view">
+        <field name="name">rma.view.search</field>
+        <field name="model">rma</field>
+        <field name="arch" type="xml">
+            <search>
+                <field name="name" />
+                <field name="user_id" />
+                <filter name="draft_filter"
+                        string="Draft"
+                        domain="[('state','=', 'draft')]" />
+                <filter name="confirmed_filter"
+                        string="Confirmed"
+                        domain="[('state','=', 'confirmed')]" />
+                <filter name="received_filter"
+                        string="Received"
+                        domain="[('state','=', 'received')]" />
+                <separator />
+                <filter name="no_user_id_filter"
+                        string="Unassigned RMAs"
+                        domain="[('user_id','=', False)]" />
+                <group string="Group By" name="group_by">
+                    <filter string="Partner"
+                            name="partner_id_group_by"
+                            context="{'group_by':'partner_id'}" />
+                    <filter string="Responsible"
+                            name="user_id_group_by"
+                            context="{'group_by':'user_id'}" />
+                    <filter string="State"
+                            name="state_group_by"
+                            context="{'group_by':'state'}" />
+                    <filter string="Date"
+                            name="date_group_by"
+                            context="{'group_by':'date'}" />
+                    <filter string="Deadline"
+                            name="deadline_group_by"
+                            context="{'group_by':'deadline'}" />
+                </group>
+            </search>
+        </field>
+    </record>
+
+    <record id="rma_view_tree" model="ir.ui.view">
+        <field name="name">rma.view.tree</field>
+        <field name="model">rma</field>
+        <field name="arch" type="xml">
+            <tree decoration-muted="state in ['cancelled', 'locked']"
+                  decoration-bf="state == 'draft' and product_id == False">
+                <field name="name"/>
+                <field name="origin"/>
+                <field name="user_id"/>
+                <field name="partner_id"/>
+                <field name="product_id"/>
+                <field name="product_uom_qty"/>
+                <field name="product_uom" groups="uom.group_uom"/>
+                <field name="date"/>
+                <field name="deadline"/>
+                <field name="state"/>
+            </tree>
+        </field>
+    </record>
+
+    <record id="rma_view_form" model="ir.ui.view">
+        <field name="name">rma.view.form</field>
+        <field name="model">rma</field>
+        <field name="arch" type="xml">
+            <form>
+                <header>
+                    <button name="%(portal.portal_share_action)d"
+                            string="Share"
+                            type="action"
+                            class="oe_highlight oe_read_only"/>
+                    <button type="object"
+                            string="Send by Email"
+                            name="action_rma_send"
+                            attrs="{'invisible':['|', ('sent','=',True), ('state', 'not in', ['draft', 'confirmed', 'received'])]}"
+                            class="btn-primary"/>
+                    <button type="object"
+                            string="Send by Mail"
+                            name="action_rma_send"
+                            attrs="{'invisible':['|', ('sent','=',False), ('state', 'not in', ['draft', 'confirmed', 'received'])]}" />
+                    <button type="object"
+                            string="Confirm"
+                            name="action_confirm"
+                            states="draft"
+                            class="btn-primary"/>
+                    <button type="object"
+                            string="To Refund"
+                            name="action_refund"
+                            attrs="{'invisible': [('can_be_refunded', '=', False)]}"
+                            class="btn-primary"/>
+                    <button type="object"
+                            string="Replace"
+                            name="action_replace"
+                            attrs="{'invisible': [('can_be_replaced', '=', False)]}"
+                            class="btn-primary"/>
+                    <button type="object"
+                            string="Return to customer"
+                            name="action_return"
+                            attrs="{'invisible': [('can_be_returned', '=', False)]}"
+                            class="btn-primary"/>
+                    <button type="object"
+                            string="Split"
+                            name="action_split"
+                            attrs="{'invisible': [('can_be_split', '=', False)]}"/>
+                    <button type="object"
+                            string="Cancel"
+                            name="action_cancel"
+                            confirm="Are you sure you want to cancel this RMA"
+                            states="draft,confirmed"/>
+                    <button type="object"
+                            string="Set to draft"
+                            name="action_draft"
+                            states="cancelled"/>
+                    <button type="object"
+                            string="Lock"
+                            name="action_lock"
+                            attrs="{'invisible': [('can_be_locked', '=', False)]}"/>
+                    <button type="object"
+                            string="Unlock"
+                            name="action_unlock"
+                            states="locked"/>
+                    <button type="object"
+                            string="Preview"
+                            name="action_preview"/>
+                    <field name="state" widget="statusbar" statusbar_visible="draft,confirmed,received"/>
+                </header>
+                <sheet>
+                    <div class="oe_button_box" name="button_box">
+                        <button type="object"
+                                name="action_view_receipt"
+                                string="Receipt"
+                                class="oe_stat_button"
+                                icon="fa-truck"
+                                attrs="{'invisible': [('reception_move_id', '=', False)]}">
+                        </button>
+                        <button type="object"
+                                name="action_view_delivery"
+                                class="oe_stat_button"
+                                icon="fa-truck"
+                                attrs="{'invisible': [('delivery_picking_count', '=', 0)]}">
+                            <field name="delivery_picking_count" widget="statinfo" string="Delivery"/>
+                        </button>
+                        <button type="object"
+                                string="Refund"
+                                name="action_view_refund"
+                                class="oe_stat_button"
+                                icon="fa-pencil-square-o"
+                                attrs="{'invisible': [('refund_id', '=', False)]}">
+                        </button>
+                    </div>
+                    <div class="oe_title">
+                        <h1>
+                            <field name="name" readonly="1"/>
+                        </h1>
+                    </div>
+                    <group>
+                        <group>
+                            <field name="partner_id" widget="res_partner_many2one" context="{'search_default_customer':1, 'show_address': 1, 'show_vat': True}" options="{'always_reload': True}"/>
+                            <field name="partner_invoice_id"/>
+                            <field name="picking_id"
+                                   options="{'no_create': True}"/>
+                            <field name="move_id"
+                                   attrs="{'required': [('picking_id', '!=', False)], 'readonly': [('picking_id', '=', False)]}"
+                                   options="{'no_create': True}"
+                                   force_save="1"/>
+                            <field name="product_id"
+                                   force_save="1"
+                                   attrs="{'readonly': ['|', ('picking_id', '!=', False), ('state', '!=', 'draft')]}"/>
+                            <label for="product_uom_qty"/>
+                            <div class="o_row">
+                                <field name="product_uom_qty"/>
+                                <field name="product_uom"
+                                       groups="uom.group_uom"/>
+                            </div>
+                            <field name="delivered_qty"
+                                   attrs="{'invisible': [('delivered_qty', '=', 0.0)]}"/>
+                        </group>
+                        <group>
+                            <field name="date"/>
+                            <field name="user_id"/>
+                            <field name="team_id"/>
+                            <field name="origin"/>
+                            <field name="operation_id"/>
+                            <field name="company_id"
+                                   options="{'no_create': True}"
+                                   groups="base.group_multi_company"/>
+                        </group>
+                    </group>
+                    <notebook>
+                        <page name="page_other"
+                              string="Other Information">
+                            <group>
+                                <group>
+                                    <field name="procurement_group_id"/>
+                                    <field name="location_id"
+                                           options="{'no_create': True, 'no_open': True}"
+                                           groups="stock.group_stock_multi_locations" />
+                                </group>
+                                <group>
+                                    <field name="deadline"/>
+                                    <field name="priority" widget="priority"/>
+                                    <field name="origin_split_rma_id"
+                                           attrs="{'invisible': [('origin_split_rma_id', '=', False)]}"/>
+                                </group>
+                            </group>
+                            <group>
+                                <label for="description" class="oe_edit_only"/>
+                                <field name="description" colspan="4" nolabel="1"/>
+                            </group>
+                        </page>
+                    </notebook>
+                    <field name="sent" invisible="1"/>
+                    <field name="reception_move_id" invisible="1"/>
+                    <field name="refund_id" invisible="1"/>
+                    <field name="can_be_refunded" invisible="1"/>
+                    <field name="can_be_returned" invisible="1"/>
+                    <field name="can_be_replaced" invisible="1"/>
+                    <field name="can_be_split" invisible="1"/>
+                    <field name="can_be_locked" invisible="1"/>
+                    <field name="commercial_partner_id" invisible="1"/>
+                    <field name="remaining_qty" invisible="1"/>
+                </sheet>
+                <div class="oe_chatter">
+                    <field name="message_follower_ids" widget="mail_followers"/>
+                    <field name="activity_ids" widget="mail_activity"/>
+                    <field name="message_ids" widget="mail_thread"/>
+                </div>
+            </form>
+        </field>
+    </record>
+
+    <record id="rma_view_pivot" model="ir.ui.view">
+        <field name="name">rma.pivot</field>
+        <field name="model">rma</field>
+        <field name="arch" type="xml">
+            <pivot>
+                <field name="date" type="row"/>
+                <field name="product_uom_qty" type="measure"/>
+                <field name="delivered_qty" type="measure"/>
+            </pivot>
+        </field>
+    </record>
+
+    <record id="rma_view_calendar" model="ir.ui.view">
+        <field name="name">rma.calendar</field>
+        <field name="model">rma</field>
+        <field name="arch" type="xml">
+            <calendar date_start="date" mode="month" color="state" quick_add="False">
+                <field name="name"/>
+                <field name="partner_id"/>
+                <field name="product_id"/>
+                <field name="product_uom_qty" widget="monetary"/>
+            </calendar>
+        </field>
+    </record>
+
+    <record id="rma_refund_action_server" model="ir.actions.server">
+        <field name="name">To Refund</field>
+        <field name="model_id" ref="model_rma"/>
+        <field name="binding_model_id" ref="model_rma"/>
+        <field name="state">code</field>
+        <field name="code">records.action_refund()</field>
+    </record>
+
+    <record id="rma_action" model="ir.actions.act_window">
+        <field name="name">RMA</field>
+        <field name="res_model">rma</field>
+        <field name="view_type">form</field>
+        <field name="view_mode">tree,form,pivot,calendar</field>
+        <field name="context">{"search_default_user_id": uid}</field>
+        <field name="help" type="html">
+            <p class="o_view_nocontent_smiling_face">
+                Click to add a new RMA.
+            </p>
+        </field>
+    </record>
+
+    <record id="rma.rma_orders_menu" model="ir.ui.menu">
+        <field name="action" ref="rma_action"/>
+    </record>
+</odoo>

rma/views/stock_picking_views.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2020 Tecnativa - Ernesto Tejeda
+     License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl). -->
+<odoo>
+    <record id="view_picking_form" model="ir.ui.view">
+        <field name="name">stock.picking.form</field>
+        <field name="model">stock.picking</field>
+        <field name="inherit_id" ref="stock.view_picking_form"/>
+        <field name="arch" type="xml">
+            <div name="button_box">
+                <button name="action_view_rma"
+                        type="object"
+                        class="oe_stat_button"
+                        icon="fa-reply"
+                        attrs="{'invisible': [('rma_count', '=', 0)]}">
+                    <field name="rma_count"
+                           widget="statinfo"
+                           string="RMA"/>
+                </button>
+            </div>
+        </field>
+    </record>
+</odoo>

rma/views/stock_warehouse_views.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="view_warehouse_inherit_mrp" model="ir.ui.view">
+        <field name="name">Stock Warehouse Inherit MRP</field>
+        <field name="model">stock.warehouse</field>
+        <field name="inherit_id" ref="stock.view_warehouse"/>
+        <field name="arch" type="xml">
+            <xpath expr="//field[@name='wh_output_stock_loc_id']/..">
+                <field name="rma_loc_id"/>
+            </xpath>
+            <xpath expr="//field[@name='out_type_id']/..">
+                <field name="rma_in_type_id"/>
+                <field name="rma_out_type_id"/>
+            </xpath>
+        </field>
+    </record>
+</odoo>

rma/wizard/__init__.py

@@ -0,0 +1,5 @@
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from . import rma_delivery
+from . import rma_split
+from . import stock_picking_return

rma/wizard/rma_delivery.py

@@ -0,0 +1,102 @@
+# Copyright 2020 Tecnativa - Ernesto Tejeda
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo import _, api, fields, models
+from odoo.exceptions import ValidationError
+import odoo.addons.decimal_precision as dp
+
+
+class RmaReDeliveryWizard(models.TransientModel):
+    _name = 'rma.delivery.wizard'
+    _description = 'RMA Delivery Wizard'
+
+    rma_count = fields.Integer()
+    type = fields.Selection(
+        selection=[
+            ('replace', 'Replace'),
+            ('return', 'Return to customer'),
+        ],
+        string="Type",
+        required=True,
+    )
+    product_id = fields.Many2one(
+        comodel_name="product.product",
+        string="Replace Product",
+    )
+    product_uom_qty = fields.Float(
+        string='Product qty',
+        digits=dp.get_precision('Product Unit of Measure'),
+    )
+    product_uom = fields.Many2one(
+        comodel_name="uom.uom",
+        string="Unit of measure",
+    )
+    scheduled_date = fields.Datetime(
+        required=True,
+        default=fields.Datetime.now(),
+    )
+    warehouse_id = fields.Many2one(
+        comodel_name="stock.warehouse",
+        string='Warehouse',
+        required=True,
+    )
+
+    @api.constrains('product_uom_qty')
+    def _check_product_uom_qty(self):
+        self.ensure_one()
+        rma_ids = self.env.context.get('active_ids')
+        if len(rma_ids) == 1 and self.product_uom_qty <= 0:
+            raise ValidationError(_('Quantity must be greater than 0.'))
+
+    @api.model
+    def default_get(self, fields_list):
+        res = super().default_get(fields_list)
+        rma_ids = self.env.context.get('active_ids')
+        rma = self.env['rma'].browse(rma_ids)
+        warehouse_id = self.env['stock.warehouse'].search(
+            [('company_id', '=', rma[0].company_id.id)], limit=1).id
+        delivery_type = self.env.context.get('rma_delivery_type')
+        product_id = False
+        if len(rma) == 1 and delivery_type == 'return':
+            product_id = rma.product_id.id
+        product_uom_qty = 0.0
+        if len(rma) == 1 and rma.remaining_qty > 0.0:
+            product_uom_qty = rma.remaining_qty
+        res.update(
+            rma_count=len(rma),
+            warehouse_id=warehouse_id,
+            type=delivery_type,
+            product_id=product_id,
+            product_uom_qty=product_uom_qty,
+        )
+        return res
+
+    @api.onchange("product_id")
+    def _onchange_product_id(self):
+        domain_product_uom = []
+        if self.product_id:
+            domain_product_uom = [
+                ('category_id', '=', self.product_id.uom_id.category_id.id)
+            ]
+            if (not self.product_uom
+                    or self.product_id.uom_id.id != self.product_uom.id):
+                self.product_uom = self.product_id.uom_id
+        return {'domain': {'product_uom': domain_product_uom}}
+
+    def action_deliver(self):
+        self.ensure_one()
+        rma_ids = self.env.context.get('active_ids')
+        rma = self.env['rma'].browse(rma_ids)
+        if self.type == 'replace':
+            rma.create_replace(
+                self.scheduled_date,
+                self.warehouse_id,
+                self.product_id,
+                self.product_uom_qty,
+                self.product_uom,
+            )
+        elif self.type == 'return':
+            qty = uom = None
+            if self.rma_count == 1:
+                qty, uom = self.product_uom_qty, self.product_uom
+            rma.create_return(self.scheduled_date, qty, uom)

rma/wizard/rma_delivery_views.xml

@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2020 Tecnativa - Ernesto Tejeda
+     License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl). -->
+<odoo>
+    <record id="rma_redelivery_wizard_view_form" model="ir.ui.view">
+        <field name="name">rma.delivery.wizard.form</field>
+        <field name="model">rma.delivery.wizard</field>
+        <field name="arch" type="xml">
+            <form>
+                <group>
+                    <group>
+                        <field name="scheduled_date"/>
+                        <field name="warehouse_id"
+                               attrs="{'invisible': [('type', '!=', 'replace')]}"/>
+                    </group>
+                    <group>
+                        <field name="product_id"
+                               attrs="{'invisible': ['|', ('type', '!=', 'replace'), ('rma_count', '>', 1)], 'required': [('type', '=', 'replace'), ('rma_count', '=', 1)]}"/>
+                        <label for="product_uom_qty"
+                               attrs="{'invisible': [('rma_count', '>', 1)]}"/>
+                        <div class="o_row"
+                             attrs="{'invisible': [('rma_count', '>', 1)]}">
+                            <field name="product_uom_qty"
+                                   attrs="{'required': [('rma_count', '=', 1)]}"/>
+                            <field name="product_uom"
+                                   groups="uom.group_uom"
+                                   attrs="{'required': [('rma_count', '=', 1)]}"/>
+                        </div>
+                    </group>
+                </group>
+                <field name="rma_count" invisible="1"/>
+                <field name="type" invisible="1"/>
+                <footer>
+                    <button name="action_deliver" string="Deliver" type="object" class="btn-primary"/>
+                    <button string="Cancel" class="btn-secondary" special="cancel" />
+                </footer>
+            </form>
+        </field>
+    </record>
+    <act_window id="rma_delivery_wizard_action"
+                name="Return to customer"
+                src_model="rma"
+                res_model="rma.delivery.wizard"
+                view_type="form"
+                view_mode="form"
+                key2="client_action_multi"
+                target="new"
+                multi="True"
+                context="{'rma_delivery_type': 'return'}"/>
+</odoo>

rma/wizard/rma_split.py

@@ -0,0 +1,70 @@
+# Copyright 2020 Tecnativa - Ernesto Tejeda
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo import _, api, fields, models
+import odoo.addons.decimal_precision as dp
+
+
+class RmaReSplitWizard(models.TransientModel):
+    _name = 'rma.split.wizard'
+    _description = 'RMA Split Wizard'
+
+    rma_id = fields.Many2one(
+        comodel_name='rma',
+        string='RMA',
+    )
+    product_uom_qty = fields.Float(
+        string='Quantity to extract',
+        digits=dp.get_precision('Product Unit of Measure'),
+        required=True,
+        help="Quantity to extract to a new RMA."
+    )
+    product_uom = fields.Many2one(
+        comodel_name='uom.uom',
+        string='Unit of measure',
+        required=True,
+    )
+
+    _sql_constraints = [
+        (
+            'check_product_uom_qty_positive',
+            'CHECK(product_uom_qty > 0)',
+            'Quantity must be greater than 0.'
+        ),
+    ]
+
+    @api.model
+    def fields_get(self, allfields=None, attributes=None):
+        res = super().fields_get(allfields, attributes=attributes)
+        rma_id = self.env.context.get('active_id')
+        rma = self.env['rma'].browse(rma_id)
+        res['product_uom']['domain'] = [
+            ('category_id', '=', rma.product_uom.category_id.id)
+        ]
+        return res
+
+    @api.model
+    def default_get(self, fields_list):
+        res = super().default_get(fields_list)
+        rma_id = self.env.context.get('active_id')
+        rma = self.env['rma'].browse(rma_id)
+        res.update(
+            rma_id=rma.id,
+            product_uom_qty=rma.remaining_qty,
+            product_uom=rma.product_uom.id,
+        )
+        return res
+
+    def action_split(self):
+        self.ensure_one()
+        extracted_rma = self.rma_id.extract_quantity(
+            self.product_uom_qty, self.product_uom)
+        return {
+            'name': _('Extracted RMA'),
+            'type': 'ir.actions.act_window',
+            'view_type': 'form',
+            'view_mode': 'form',
+            'res_model': 'rma',
+            'views': [(self.env.ref('rma.rma_view_form').id, 'form')],
+            'res_id': extracted_rma.id,
+        }

rma/wizard/rma_split_views.xml

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2020 Tecnativa - Ernesto Tejeda
+     License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl). -->
+<odoo>
+    <record id="rma_split_wizard_view_form2" model="ir.ui.view">
+        <field name="name">rma.split.wizard.form</field>
+        <field name="model">rma.split.wizard</field>
+        <field name="arch" type="xml">
+            <form>
+                <group>
+                    <group>
+                        <label for="product_uom_qty"/>
+                        <div class="o_row">
+                            <field name="product_uom_qty"/>
+                            <field name="product_uom" groups="uom.group_uom"/>
+                        </div>
+                    </group>
+                </group>
+                <footer>
+                    <button name="action_split" string="Split" type="object" class="btn-primary"/>
+                    <button string="Cancel" class="btn-secondary" special="cancel" />
+                </footer>
+            </form>
+        </field>
+    </record>
+    <record id="rma_split_wizard_action" model="ir.actions.act_window">
+        <field name="name">Split RMA</field>
+        <field name="res_model">rma.split.wizard</field>
+        <field name="view_type">form</field>
+        <field name="view_mode">form</field>
+        <field name="target">new</field>
+    </record>
+</odoo>

rma/wizard/stock_picking_return.py

@@ -0,0 +1,83 @@
+# Copyright 2020 Tecnativa - Ernesto Tejeda
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo import _, api, fields, models
+from odoo.exceptions import ValidationError
+
+
+class ReturnPicking(models.TransientModel):
+    _inherit = 'stock.return.picking'
+
+    create_rma = fields.Boolean(
+        string="Create RMAs"
+    )
+    picking_type_code = fields.Selection(
+        selection=[
+            ('incoming', 'Vendors'),
+            ('outgoing', 'Customers'),
+            ('internal', 'Internal'),
+        ],
+        related='picking_id.picking_type_id.code',
+        store=True,
+        readonly=True,
+    )
+
+    @api.onchange("create_rma")
+    def _onchange_create_rma(self):
+        if self.create_rma:
+            warehouse = self.picking_id.picking_type_id.warehouse_id
+            self.location_id = warehouse.rma_loc_id.id
+            rma_loc = warehouse.search([]).mapped('rma_loc_id')
+            rma_loc_domain = [('id', 'child_of', rma_loc.ids)]
+        else:
+            self.location_id = self.default_get(['location_id'])['location_id']
+            rma_loc_domain = [
+                '|',
+                ('id', '=', self.picking_id.location_id.id),
+                ('return_location', '=', True),
+            ]
+        return {'domain': {'location_id': rma_loc_domain}}
+
+    def create_returns(self):
+        """ Override create_returns method for creating one or more
+        'confirmed' RMAs after return a delivery picking in case
+        'Create RMAs' checkbox is checked in this wizard.
+        New RMAs will be linked to the delivery picking as the origin
+        delivery and also RMAs will be linked to the returned picking
+        as the 'Receipt'.
+        """
+        if self.create_rma:
+            # set_rma_picking_type is to override the copy() method of stock
+            # picking and change the default picking type to rma picking type
+            self_with_context = self.with_context(set_rma_picking_type=True)
+            res = super(ReturnPicking, self_with_context).create_returns()
+            partner = self.picking_id.partner_id
+            if not partner:
+                raise ValidationError(_(
+                    "You must specify the 'Customer' in the "
+                    "'Stock Picking' from which RMAs will be created"))
+            picking = self.picking_id
+            returned_picking = self.env['stock.picking'].browse(res['res_id'])
+            if hasattr(picking, 'sale_id') and picking.sale_id:
+                partner_invoice_id = picking.sale_id.partner_invoice_id.id
+            else:
+                partner_invoice_id = partner.address_get(
+                    ['invoice']).get('invoice', False),
+            for move in returned_picking.move_lines:
+                self.env['rma'].create({
+                    'partner_id': partner.id,
+                    'partner_invoice_id': partner_invoice_id,
+                    'origin': picking.name,
+                    'picking_id': picking.id,
+                    'move_id': move.origin_returned_move_id.id,
+                    'product_id': move.origin_returned_move_id.product_id.id,
+                    'product_uom_qty': move.product_uom_qty,
+                    'product_uom': move.product_uom.id,
+                    'reception_move_id': move.id,
+                    'company_id': move.company_id.id,
+                    'location_id': move.location_dest_id.id,
+                    'state': 'confirmed',
+                })
+            return res
+        else:
+            return super().create_returns()

rma/wizard/stock_picking_return_views.xml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2020 Tecnativa - Ernesto Tejeda
+     License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl). -->
+<odoo>
+    <record id="view_stock_return_picking_form" model="ir.ui.view">
+        <field name="name">Return lines inherit RMA</field>
+        <field name="model">stock.return.picking</field>
+        <field name="inherit_id" ref="stock.view_stock_return_picking_form" />
+        <field name="arch" type="xml">
+            <xpath expr="//group[.//field[@name='product_return_moves']]" position="before">
+                <group name="group_rma">
+                    <field name="create_rma"
+                           attrs="{'invisible': [('picking_type_code', '!=', 'outgoing')]}"/>
+                    <field name="picking_id" invisible="1"/>
+                    <field name="picking_type_code" invisible="1"/>
+                </group>
+            </xpath>
+        </field>
+    </record>
+</odoo>