diff --git a/stock_change_qty_reason/__manifest__.py b/stock_change_qty_reason/__manifest__.py
index d7d65b267..8548cd051 100644
--- a/stock_change_qty_reason/__manifest__.py
+++ b/stock_change_qty_reason/__manifest__.py
@@ -19,6 +19,7 @@
         'views/base_config_view.xml',
         'views/stock_inventory_line_reason_view.xml',
         'views/stock_inventory_line_view.xml',
+        'views/stock_inventory_view.xml',
         'wizard/stock_product_change_qty.xml'
     ],
     'installable': True,
diff --git a/stock_change_qty_reason/models/__init__.py b/stock_change_qty_reason/models/__init__.py
index 4e1329aa1..0b357cdec 100644
--- a/stock_change_qty_reason/models/__init__.py
+++ b/stock_change_qty_reason/models/__init__.py
@@ -1,6 +1,7 @@
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
 from . import res_config_settings
+from . import stock_inventory
 from . import stock_inventory_line
 from . import stock_inventory_line_reason
 from . import stock_move
diff --git a/stock_change_qty_reason/models/stock_inventory.py b/stock_change_qty_reason/models/stock_inventory.py
new file mode 100644
index 000000000..fd3b50e83
--- /dev/null
+++ b/stock_change_qty_reason/models/stock_inventory.py
@@ -0,0 +1,30 @@
+# Copyright 2019 Eficent Business and IT Consulting Services S.L.
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+from odoo import api, fields, models
+
+
+class StockInventory(models.Model):
+    _inherit = 'stock.inventory'
+
+    reason = fields.Char(help='Type in a reason for the '
+                              'product quantity change')
+    preset_reason_id = fields.Many2one('stock.inventory.line.reason')
+
+    def _get_inventory_lines_values(self):
+        vals = super(StockInventory, self)._get_inventory_lines_values()
+        for val in vals:
+            if self.preset_reason_id:
+                val['preset_reason_id'] = self.preset_reason_id.id
+            elif self.reason:
+                val['reason'] = self.reason
+        return vals
+
+    @api.onchange('reason')
+    def onchange_reason(self):
+        for line in self.line_ids:
+            line.reason = self.reason
+
+    @api.onchange('preset_reason_id')
+    def onchange_preset_reason(self):
+        for line in self.line_ids:
+            line.preset_reason_id = self.preset_reason_id
diff --git a/stock_change_qty_reason/tests/test_stock_change_qty_reason.py b/stock_change_qty_reason/tests/test_stock_change_qty_reason.py
index 5a3dcb511..86615386a 100644
--- a/stock_change_qty_reason/tests/test_stock_change_qty_reason.py
+++ b/stock_change_qty_reason/tests/test_stock_change_qty_reason.py
@@ -18,6 +18,7 @@ class TestStockQuantityChangeReason(SavepointCase):
         cls.product_category_model = cls.env['product.category']
         cls.wizard_model = cls.env['stock.change.product.qty']
         cls.preset_reason_id = cls.env['stock.inventory.line.reason']
+        cls.stock_location = cls.env.ref('stock.stock_location_stock')
 
         # INSTANCES
         cls.category = cls.product_category_model.create({
@@ -104,3 +105,28 @@ class TestStockQuantityChangeReason(SavepointCase):
         self.assertEqual(move2.origin, reason.name)
         self.assertEqual(move2.preset_reason_id, reason)
         self.assertFalse(move3)
+
+    def test_inventory_adjustment_onchange_reason_preset_reason(self):
+        """ Check that adding a reason or a preset reason explode to lines
+        """
+        product2 = self._create_product('product_product_2')
+        self._product_change_qty(product2, 50, 'product_2_reason')
+        inventory = self.env['stock.inventory'].create({
+            'name': 'remove product2',
+            'filter': 'product',
+            'location_id': self.stock_location.id,
+            'product_id': product2.id,
+        })
+        inventory.preset_reason_id = self._create_reason('Test 1',
+                                                         'Description Test 1')
+        inventory.action_start()
+        self.assertEqual(len(inventory.line_ids), 1)
+        inventory.preset_reason_id = self._create_reason('Test 2',
+                                                         'Description Test 2')
+        inventory.onchange_preset_reason()
+        self.assertEquals(inventory.line_ids.preset_reason_id,
+                          inventory.preset_reason_id)
+        inventory.reason = 'Reason 2'
+        inventory.onchange_reason()
+        self.assertEquals(inventory.line_ids.reason,
+                          inventory.reason)
diff --git a/stock_change_qty_reason/views/stock_inventory_view.xml b/stock_change_qty_reason/views/stock_inventory_view.xml
new file mode 100644
index 000000000..7d28ae4ad
--- /dev/null
+++ b/stock_change_qty_reason/views/stock_inventory_view.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2019 Eficent Business and IT Consulting Services S.L.
+     License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl). -->
+<odoo>
+    <record id="reason_stock_inventory_form_inherit" model="ir.ui.view">
+        <field name="name">stock.inventory.reason.form.inherit</field>
+        <field name="model">stock.inventory</field>
+        <field name="inherit_id" ref="stock.view_inventory_form"/>
+        <field name="arch" type="xml">
+            <field name="date" position="after">
+                <field name="reason"/>
+            </field>
+        </field>
+    </record>
+
+    <record id="preset_reason_stock_inventory_form_inherit" model="ir.ui.view">
+        <field name="name">stock.inventory.reason.form.inherit.code</field>
+        <field name="model">stock.inventory</field>
+        <field name="inherit_id" ref="reason_stock_inventory_form_inherit"/>
+        <field name="groups_id" eval="[(4, ref('stock_change_qty_reason.group_qty_reason_preset'))]"/>
+        <field name="arch" type="xml">
+            <field name="reason" position="replace">
+                <field name="preset_reason_id"/>
+            </field>
+        </field>
+    </record>
+</odoo>