diff --git a/rma_sale/wizards/rma_add_sale.py b/rma_sale/wizards/rma_add_sale.py
index c2a4ecc3..44700e4e 100644
--- a/rma_sale/wizards/rma_add_sale.py
+++ b/rma_sale/wizards/rma_add_sale.py
@@ -175,7 +175,12 @@ class RmaAddSale(models.TransientModel):
             if line not in existing_sale_lines or tracking_move:
                 if not tracking_move:
                     data = self._prepare_rma_line_from_sale_order_line(line)
-                    rma_line_obj.create(data)
+                    rec = rma_line_obj.create(data)
+                    # Ensure that configuration on the operation is applied
+                    # TODO MIG: in v16 the usage of such onchange can be removed in
+                    #  favor of (pre)computed stored editable fields for all policies
+                    #  and configuration in the RMA operation.
+                    rec._onchange_operation_id()
                 else:
                     for lot in line.mapped("move_ids.move_line_ids.lot_id").filtered(
                         lambda x: x.id in self.lot_ids.ids
@@ -183,7 +188,12 @@ class RmaAddSale(models.TransientModel):
                         if lot.id in self.rma_id.rma_line_ids.mapped("lot_id").ids:
                             continue
                         data = self._prepare_rma_line_from_sale_order_line(line, lot)
-                        rma_line_obj.create(data)
+                        rec = rma_line_obj.create(data)
+                        # Ensure that configuration on the operation is applied
+                        # TODO MIG: in v16 the usage of such onchange can be removed in
+                        #  favor of (pre)computed stored editable fields for all policies
+                        #  and configuration in the RMA operation.
+                        rec._onchange_operation_id()
         rma = self.rma_id
         data_rma = self._get_rma_data()
         rma.write(data_rma)