diff --git a/sale_line_change/__init__.py b/sale_line_change/__init__.py
new file mode 100644
index 00000000..40272379
--- /dev/null
+++ b/sale_line_change/__init__.py
@@ -0,0 +1 @@
+from . import wizard
diff --git a/sale_line_change/__manifest__.py b/sale_line_change/__manifest__.py
new file mode 100644
index 00000000..f26c602a
--- /dev/null
+++ b/sale_line_change/__manifest__.py
@@ -0,0 +1,25 @@
+{
+    'name': 'Sale Line Change',
+    'summary': 'Change Confirmed Sale Lines Routes or Warehouses.',
+    'version': '13.0.1.0.0',
+    'author': "Hibou Corp.",
+    'category': 'Sale',
+    'license': 'AGPL-3',
+    'complexity': 'expert',
+    'images': [],
+    'website': "https://hibou.io",
+    'description': """
+""",
+    'depends': [
+        'sale_sourced_by_line',
+        'sale_stock',
+        'stock_dropshipping',
+    ],
+    'demo': [],
+    'data': [
+        'wizard/sale_line_change_views.xml',
+        'views/sale_views.xml',
+    ],
+    'auto_install': False,
+    'installable': True,
+}
diff --git a/sale_line_change/tests/__init__.py b/sale_line_change/tests/__init__.py
new file mode 100644
index 00000000..27bc6136
--- /dev/null
+++ b/sale_line_change/tests/__init__.py
@@ -0,0 +1 @@
+from . import test_sale_line_change
diff --git a/sale_line_change/tests/test_sale_line_change.py b/sale_line_change/tests/test_sale_line_change.py
new file mode 100644
index 00000000..129f9efc
--- /dev/null
+++ b/sale_line_change/tests/test_sale_line_change.py
@@ -0,0 +1,99 @@
+from odoo.tests import common
+from odoo.exceptions import ValidationError
+
+
+class TestSaleLineChange(common.TransactionCase):
+    def setUp(self):
+        super(TestSaleLineChange, self).setUp()
+        self.warehouse0 = self.env.ref('stock.warehouse0')
+        self.warehouse1 = self.env['stock.warehouse'].create({
+            'company_id': self.env.user.company_id.id,
+            # 'partner_id': self.env.user.company_id.partner_id.id,
+            'name': 'TWH1',
+            'code': 'TWH1',
+        })
+        self.product1 = self.env.ref('product.product_product_24')
+        self.partner1 = self.env.ref('base.res_partner_12')
+        self.so1 = self.env['sale.order'].create({
+            'partner_id': self.partner1.id,
+            'partner_invoice_id': self.partner1.id,
+            'partner_shipping_id': self.partner1.id,
+            'order_line': [(0, 0, {
+                'product_id': self.product1.id,
+                'name': 'N/A',
+                'product_uom_qty': 1.0,
+                'price_unit': 100.0,
+            })]
+        })
+        self.dropship_route = self.env.ref('stock_dropshipping.route_drop_shipping')
+        self.warehouse0_route = self.warehouse0.route_ids.filtered(lambda r: r.name.find('Deliver') >= 0)
+
+    def test_00_sale_change_warehouse(self):
+        so = self.so1
+
+        so.action_confirm()
+        self.assertTrue(so.state in ('sale', 'done'))
+        self.assertTrue(so.picking_ids)
+        org_picking = so.picking_ids
+        self.assertEqual(org_picking.picking_type_id.warehouse_id, self.warehouse0)
+
+        wiz = self.env['sale.line.change.order'].with_context(default_order_id=so.id).create({})
+        self.assertTrue(wiz.line_ids)
+        wiz.line_ids.line_warehouse_id = self.warehouse1
+        wiz.line_ids.line_date_planned = '2018-01-01 00:00:00'
+        wiz.apply()
+
+        self.assertTrue(len(so.picking_ids) == 2)
+        self.assertTrue(org_picking.state == 'cancel')
+        new_picking = so.picking_ids - org_picking
+        self.assertTrue(new_picking)
+        self.assertEqual(new_picking.picking_type_id.warehouse_id, self.warehouse1)
+        self.assertEqual(str(new_picking.scheduled_date), '2018-01-01 00:00:00')
+
+    def test_01_sale_change_route(self):
+        so = self.so1
+
+        so.action_confirm()
+        self.assertTrue(so.state in ('sale', 'done'))
+        self.assertTrue(so.picking_ids)
+        org_picking = so.picking_ids
+        self.assertEqual(org_picking.picking_type_id.warehouse_id, self.warehouse0)
+
+        # Change route on wizard line
+        wiz = self.env['sale.line.change.order'].with_context(default_order_id=so.id).create({})
+        self.assertTrue(wiz.line_ids)
+        wiz.line_ids.line_route_id = self.dropship_route
+        wiz.apply()
+
+        # Check that RFQ/PO was created.
+        self.assertTrue(org_picking.state == 'cancel')
+        po_line = self.env['purchase.order.line'].search([('sale_line_id', '=', so.order_line.id)])
+        self.assertTrue(po_line)
+
+    def test_02_sale_dropshipping_to_warehouse(self):
+        self.assertTrue(self.warehouse0_route)
+        self.product1.route_ids += self.dropship_route
+        so = self.so1
+
+        so.action_confirm()
+        self.assertTrue(so.state in ('sale', 'done'))
+        self.assertFalse(so.picking_ids)
+
+        # Change route on wizard line
+        wiz = self.env['sale.line.change.order'].with_context(default_order_id=so.id).create({})
+        self.assertTrue(wiz.line_ids)
+        wiz.line_ids.line_route_id = self.warehouse0_route
+        wiz.line_ids.line_date_planned = '2018-01-01 00:00:00'
+
+        # Wizard cannot complete because of non-cancelled Purchase Order.
+        with self.assertRaises(ValidationError):
+            wiz.apply()
+
+        po_line = self.env['purchase.order.line'].search([('sale_line_id', '=', so.order_line.id)])
+        po_line.order_id.button_cancel()
+        wiz.apply()
+
+        # Check parameters on new picking
+        self.assertTrue(so.picking_ids)
+        self.assertEqual(so.picking_ids.picking_type_id.warehouse_id, self.warehouse0)
+        self.assertEqual(str(so.picking_ids.scheduled_date), '2018-01-01 00:00:00')
diff --git a/sale_line_change/views/sale_views.xml b/sale_line_change/views/sale_views.xml
new file mode 100644
index 00000000..57dafe2c
--- /dev/null
+++ b/sale_line_change/views/sale_views.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<odoo>
+    <record id="view_order_form_inherit" model="ir.ui.view">
+        <field name="name">sale.order.form.inherit</field>
+        <field name="model">sale.order</field>
+        <field name="inherit_id" ref="sale.view_order_form" />
+        <field name="arch" type="xml">
+            <xpath expr="//header/button[@name='action_confirm']" position="after">
+                <button name="%(action_sale_line_change_order)d"
+                        type="action"
+                        attrs="{'invisible': [('state', 'in', ('draft', 'sent', 'cancel'))]}"
+                        string="Line Change"
+                        class="btn-secondary"
+                        context="{'default_order_id': active_id}"
+                        groups="sales_team.group_sale_manager"/>
+            </xpath>
+        </field>
+    </record>
+</odoo>
\ No newline at end of file
diff --git a/sale_line_change/wizard/__init__.py b/sale_line_change/wizard/__init__.py
new file mode 100644
index 00000000..1307b5ec
--- /dev/null
+++ b/sale_line_change/wizard/__init__.py
@@ -0,0 +1 @@
+from . import sale_line_change
diff --git a/sale_line_change/wizard/sale_line_change.py b/sale_line_change/wizard/sale_line_change.py
new file mode 100644
index 00000000..d7ad4005
--- /dev/null
+++ b/sale_line_change/wizard/sale_line_change.py
@@ -0,0 +1,88 @@
+from odoo import api, fields, models
+from odoo.exceptions import ValidationError
+
+
+class SaleLineChangeOrder(models.TransientModel):
+    _name = 'sale.line.change.order'
+    _description = 'Sale Line Change Order'
+
+    order_id = fields.Many2one('sale.order', string='Sale Order')
+    line_ids = fields.One2many('sale.line.change.order.line', 'change_order_id', string='Change Lines')
+
+    @api.model
+    def default_get(self, fields):
+        rec = super(SaleLineChangeOrder, self).default_get(fields)
+        if 'order_id' in rec:
+            order = self.env['sale.order'].browse(rec['order_id'])
+            if not order:
+                return rec
+
+            line_model = self.env['sale.line.change.order.line']
+            rec['line_ids'] = [(0, 0, line_model.values_from_so_line(l)) for l in order.order_line]
+        return rec
+
+    def apply(self):
+        self.ensure_one()
+        self.line_ids.apply()
+        return True
+
+
+class SaleLineChangeOrderLine(models.TransientModel):
+    _name = 'sale.line.change.order.line'
+
+    change_order_id = fields.Many2one('sale.line.change.order')
+    sale_line_id = fields.Many2one('sale.order.line', string='Sale Line')
+    line_ordered_qty = fields.Float(string='Ordered Qty')
+    line_delivered_qty = fields.Float(string='Delivered Qty')
+    line_reserved_qty = fields.Float(string='Reserved Qty')
+    line_date_planned = fields.Datetime(string='Planned Date')
+    line_warehouse_id = fields.Many2one('stock.warehouse', string='Warehouse')
+    line_route_id = fields.Many2one('stock.location.route', string='Route')
+
+    def values_from_so_line(self, so_line):
+        move_ids = so_line.move_ids
+        reserved_qty = sum(move_ids.mapped('reserved_availability'))
+        return {
+            'sale_line_id': so_line.id,
+            'line_ordered_qty': so_line.product_uom_qty,
+            'line_delivered_qty': so_line.qty_delivered,
+            'line_reserved_qty': reserved_qty,
+            'line_date_planned': so_line.date_planned,
+            'line_warehouse_id': so_line.warehouse_id.id,
+            'line_route_id': so_line.route_id.id,
+        }
+
+    def _apply(self):
+        self._apply_clean_dropship()
+        self._apply_clean_existing_moves()
+        self._apply_new_values()
+        self._apply_procurement()
+
+    def _apply_clean_dropship(self):
+        po_line_model = self.env['purchase.order.line'].sudo()
+        po_lines = po_line_model.search([('sale_line_id', 'in', self.mapped('sale_line_id.id'))])
+
+        if po_lines and po_lines.filtered(lambda l: l.order_id.state != 'cancel'):
+            names = ', '.join(po_lines.filtered(lambda l: l.order_id.state != 'cancel').mapped('order_id.name'))
+            raise ValidationError('One or more lines has existing non-cancelled Purchase Orders associated: ' + names)
+
+    def _apply_clean_existing_moves(self):
+        moves = self.mapped('sale_line_id.move_ids').filtered(lambda m: m.state != 'done')
+        moves._action_cancel()
+
+    def _apply_new_values(self):
+        for line in self:
+            line.sale_line_id.write({
+                'date_planned': line.line_date_planned,
+                'warehouse_id': line.line_warehouse_id.id,
+                'route_id': line.line_route_id.id,
+            })
+
+    def _apply_procurement(self):
+        self.mapped('sale_line_id')._action_launch_stock_rule()
+
+    def apply(self):
+        changed_lines = self.filtered(lambda l: (
+                l.sale_line_id.warehouse_id != l.line_warehouse_id
+                or l.sale_line_id.route_id != l.line_route_id))
+        changed_lines._apply()
diff --git a/sale_line_change/wizard/sale_line_change_views.xml b/sale_line_change/wizard/sale_line_change_views.xml
new file mode 100644
index 00000000..bbdb6976
--- /dev/null
+++ b/sale_line_change/wizard/sale_line_change_views.xml
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<odoo>
+    <record id="sale_line_change_order_form" model="ir.ui.view">
+        <field name="name">sale.line.change.order.form</field>
+        <field name="model">sale.line.change.order</field>
+        <field name="type">form</field>
+        <field name="arch" type="xml">
+            <form>
+                <p>Changing Date Planned alone should be done on any existing Pickings or POs.</p>
+                <field name="order_id" invisible="1"/>
+                <field name="line_ids">
+                    <tree editable="top" create="false" delete="false">
+                        <field name="sale_line_id" string="Line" readonly="1" force_save="1"/>
+                        <field name="line_ordered_qty" string="Ordered" readonly="1"/>
+                        <field name="line_delivered_qty" string="Delivered" readonly="1"/>
+                        <field name="line_reserved_qty" string="Reserved" readonly="1"/>
+                        <field name="line_date_planned"/>
+                        <field name="line_warehouse_id" options="{'no_create': True,}"/>
+                        <field name="line_route_id" domain="[('sale_selectable', '=', True)]" options="{'no_create': True,}"/>
+                    </tree>
+                </field>
+                <footer>
+                    <button name="apply" type="object" string="Apply Changes" class="btn-primary"/>
+                    <button class="oe_link"
+                            special="cancel"
+                            string="Cancel" />
+
+                </footer>
+            </form>
+        </field>
+    </record>
+     <record id="action_sale_line_change_order" model="ir.actions.act_window">
+        <field name="name">Sale Line Change Order</field>
+        <field name="res_model">sale.line.change.order</field>
+<!--        <field name="view_type">form</field> Not a valid field in Odoo 13 ir.actions.act_window -->
+        <field name="view_mode">form</field>
+        <field name="view_id" ref="sale_line_change_order_form" />
+        <field name="target">new</field>
+    </record>
+</odoo>
\ No newline at end of file