diff --git a/rma/__manifest__.py b/rma/__manifest__.py
index c55334f1..04089d2d 100644
--- a/rma/__manifest__.py
+++ b/rma/__manifest__.py
@@ -3,7 +3,7 @@
 {
     "name": "Return Merchandise Authorization Management",
     "summary": "Return Merchandise Authorization (RMA)",
-    "version": "12.0.1.3.0",
+    "version": "12.0.1.3.1",
     "development_status": "Beta",
     "category": "RMA",
     "website": "https://github.com/OCA/rma",
diff --git a/rma/i18n/rma.pot b/rma/i18n/rma.pot
index a7f7ba9b..96bc451a 100644
--- a/rma/i18n/rma.pot
+++ b/rma/i18n/rma.pot
@@ -1308,7 +1308,7 @@ msgid "The owner of records created upon receiving emails on this alias. If this
 msgstr ""
 
 #. module: rma
-#: code:addons/rma/models/stock_move.py:60
+#: code:addons/rma/models/stock_move.py:64
 #, python-format
 msgid "The quantity done for the product '%s' must be equal to its initial demand because the stock move is linked to an RMA (%s)."
 msgstr ""
diff --git a/rma/models/account_invoice.py b/rma/models/account_invoice.py
index 731891cf..62c3951d 100644
--- a/rma/models/account_invoice.py
+++ b/rma/models/account_invoice.py
@@ -15,14 +15,16 @@ class AccountInvoice(models.Model):
         """
         precision = self.env['decimal.precision'].precision_get(
             'Product Unit of Measure')
-        if self.mapped('invoice_line_ids').filtered(
+        if self.sudo().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'})
+        self.sudo().mapped('invoice_line_ids.rma_id').write(
+            {'state': 'refunded'}
+        )
         return res
 
 
diff --git a/rma/models/stock_move.py b/rma/models/stock_move.py
index c20e64c6..29556146 100644
--- a/rma/models/stock_move.py
+++ b/rma/models/stock_move.py
@@ -30,8 +30,10 @@ class StockMove(models.Model):
     )
 
     def unlink(self):
-        rma_receiver = self.mapped('rma_receiver_ids')
-        rma = self.mapped('rma_id')
+        # A stock user could have no RMA permissions, so the ids wouldn't
+        # be accessible due to record rules.
+        rma_receiver = self.sudo().mapped('rma_receiver_ids')
+        rma = self.sudo().mapped('rma_id')
         res = super().unlink()
         rma_receiver.write({'state': 'draft'})
         rma.update_received_state()
@@ -40,7 +42,9 @@ class StockMove(models.Model):
 
     def _action_cancel(self):
         res = super()._action_cancel()
-        cancelled_moves = self.filtered(lambda r: r.state == 'cancel')
+        # A stock user could have no RMA permissions, so the ids wouldn't
+        # be accessible due to record rules.
+        cancelled_moves = self.filtered(lambda r: r.state == 'cancel').sudo()
         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()
@@ -53,7 +57,7 @@ class StockMove(models.Model):
         """
         for move in self.filtered(
                 lambda r: r.state not in ('done', 'cancel')):
-            rma_receiver = move.rma_receiver_ids
+            rma_receiver = move.rma_receiver_ids.sudo()
             if (rma_receiver
                     and move.quantity_done != rma_receiver.product_uom_qty):
                 raise ValidationError(
@@ -63,12 +67,13 @@ class StockMove(models.Model):
                     % (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(
+        move_done = self.filtered(lambda r: r.state == 'done').sudo()
+        # Set RMAs as received. We sudo so we can grant the operation even
+        # if the stock user has no RMA permissions.
+        to_be_received = move_done.sudo().mapped('rma_receiver_ids').filtered(
             lambda r: r.state == 'confirmed')
         to_be_received.write({'state': 'received'})
-        # set RMAs as delivered
+        # Set RMAs as delivered
         move_done.mapped('rma_id').update_replaced_state()
         move_done.mapped('rma_id').update_returned_state()
         return res
@@ -85,7 +90,7 @@ class StockMove(models.Model):
         RMA link id.
         """
         res = super()._prepare_move_split_vals(qty)
-        res['rma_id'] = self.rma_id.id
+        res['rma_id'] = self.sudo().rma_id.id
         return res
 
     def _prepare_return_rma_vals(self, original_picking):
diff --git a/rma/views/rma_views.xml b/rma/views/rma_views.xml
index 463a29a3..16f646ff 100644
--- a/rma/views/rma_views.xml
+++ b/rma/views/rma_views.xml
@@ -270,7 +270,7 @@
         <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="view_mode">tree,form,pivot,calendar,activity</field>
         <field name="context">{"search_default_user_id": uid}</field>
         <field name="help" type="html">
             <p class="o_view_nocontent_smiling_face">