diff --git a/shopfloor_reception/services/reception.py b/shopfloor_reception/services/reception.py
index 89e18ba1b41..e38bb88e822 100644
--- a/shopfloor_reception/services/reception.py
+++ b/shopfloor_reception/services/reception.py
@@ -1299,6 +1299,17 @@ def _auto_post_line(self, selected_line):
         new_move._action_confirm(merge=False)
         new_move._recompute_state()
         new_move._action_assign()
+        # Set back the quantity to do on lines
+        line = fields.first(
+            move.move_line_ids.filtered(
+                lambda line: line.state not in ("cancel", "done")
+            )
+        )
+        if line:
+            move_quantity = move.product_uom._compute_quantity(
+                move.product_uom_qty, line[0].product_uom_id
+            )
+            line.product_uom_qty = move_quantity
         move._recompute_state()
         new_move.extract_and_action_done()
 
diff --git a/shopfloor_reception/tests/test_set_destination.py b/shopfloor_reception/tests/test_set_destination.py
index dc4a20e02ea..63ffcea4494 100644
--- a/shopfloor_reception/tests/test_set_destination.py
+++ b/shopfloor_reception/tests/test_set_destination.py
@@ -152,3 +152,51 @@ def test_auto_posting(self):
         self.assertEqual(line_in_picking.product_uom_qty, 0)
         self.assertEqual(line_in_picking.qty_done, 0)
         self.assertEqual(picking.state, "assigned")
+
+    def test_auto_posting_concurent_work(self):
+        """Check 2 users working on the same move.
+
+        With the auto post line option On.
+
+        """
+        self.menu.sudo().auto_post_line = True
+        picking = self._create_picking(lines=[(self.product_a, 10)])
+        move = picking.move_lines
+        # User 1 starts working
+        service_u1 = self.service
+        res_u1 = service_u1.dispatch(
+            "manual_select_move",
+            params={"move_id": move.id},
+        )
+        # User 2 starts working on the same move
+        service_u2 = self._get_service_for_user(self.shopfloor_manager)
+        service_u2.dispatch(
+            "manual_select_move",
+            params={"move_id": move.id},
+        )
+        self.assertEqual(len(move.move_line_ids), 2)
+        # User 1 finishes his work
+        move_line_data = res_u1["data"]["set_quantity"]["selected_move_line"][0]
+        line_id_u1 = move_line_data["id"]
+        qty_done_u1 = move_line_data["qty_done"]
+        res_u1 = service_u1.dispatch(
+            "process_without_pack",
+            params={
+                "picking_id": picking.id,
+                "selected_line_id": line_id_u1,
+                "quantity": qty_done_u1,
+            },
+        )
+        res_u1 = service_u1.dispatch(
+            "set_destination",
+            params={
+                "picking_id": picking.id,
+                "selected_line_id": line_id_u1,
+                "location_name": self.dispatch_location.name,
+            },
+        )
+        # With the auto post line option
+        # The work done is moved and done in a specific transfer
+        self.assertEqual(picking.state, "assigned")
+        # So the quantity left to do on the current move has decreased
+        self.assertEqual(move.product_uom_qty, 9)