diff --git a/stock_inventory_lockdown/models/__init__.py b/stock_inventory_lockdown/models/__init__.py
index 644da5f35250..eaa8544286dd 100644
--- a/stock_inventory_lockdown/models/__init__.py
+++ b/stock_inventory_lockdown/models/__init__.py
@@ -1,3 +1,3 @@
-from . import stock_move
+from . import stock_move_line
 from . import stock_inventory
 from . import stock_location
diff --git a/stock_inventory_lockdown/models/stock_inventory.py b/stock_inventory_lockdown/models/stock_inventory.py
index e271e4cd0d73..436847fc8479 100644
--- a/stock_inventory_lockdown/models/stock_inventory.py
+++ b/stock_inventory_lockdown/models/stock_inventory.py
@@ -11,7 +11,6 @@ class StockInventory(models.Model):
 
     @api.model
     def _get_locations_open_inventories(self, locations_ids=None):
-        """IDs of locations in open exhaustive inventories, with children"""
         inventory_domain = [("state", "=", "in_progress")]
         if locations_ids:
             inventory_domain.append(("location_ids", "child_of", locations_ids))
@@ -20,7 +19,6 @@ def _get_locations_open_inventories(self, locations_ids=None):
             # Early exit if no match found
             return []
         location_ids = inventories.mapped("location_ids")
-
         # Extend to the children Locations
         location_domain = [
             "|",
diff --git a/stock_inventory_lockdown/models/stock_location.py b/stock_inventory_lockdown/models/stock_location.py
index 56d1e7571d52..451c015c86df 100644
--- a/stock_inventory_lockdown/models/stock_location.py
+++ b/stock_inventory_lockdown/models/stock_location.py
@@ -6,13 +6,10 @@
 
 
 class StockLocation(models.Model):
-    """Refuse changes during exhaustive Inventories"""
-
     _inherit = "stock.location"
 
     @api.constrains("location_id")
     def _check_inventory_location_id(self):
-        """Error if an inventory is being conducted here"""
         vals = set(self.ids) | set(self.mapped("location_id").ids)
         location_inventory_open_ids = self.env[
             "stock.inventory"
@@ -21,7 +18,6 @@ def _check_inventory_location_id(self):
             raise ValidationError(_("An inventory is being conducted at this location"))
 
     def unlink(self):
-        """Refuse unlink if an inventory is being conducted"""
         location_inventory_open_ids = (
             self.env["stock.inventory"].sudo()._get_locations_open_inventories(self.ids)
         )
diff --git a/stock_inventory_lockdown/models/stock_move.py b/stock_inventory_lockdown/models/stock_move_line.py
similarity index 57%
rename from stock_inventory_lockdown/models/stock_move.py
rename to stock_inventory_lockdown/models/stock_move_line.py
index 33d2510b24ba..1c859f9277d2 100644
--- a/stock_inventory_lockdown/models/stock_move.py
+++ b/stock_inventory_lockdown/models/stock_move_line.py
@@ -7,8 +7,8 @@
 from odoo.exceptions import ValidationError
 
 
-class StockMove(models.Model):
-    _inherit = "stock.move"
+class StockMoveLine(models.Model):
+    _inherit = "stock.move.line"
 
     def _get_reserved_locations(self):
         self.ensure_one()
@@ -20,33 +20,34 @@ def _get_dest_locations(self):
 
     @api.constrains("location_dest_id", "location_id", "state")
     def _check_locked_location(self):
-        for move in self.filtered(lambda m: m.state != "draft"):
+        for move_line in self.filtered(lambda m: m.state == "done"):
             locked_location_ids = self.env[
                 "stock.inventory"
             ]._get_locations_open_inventories(
-                [move.location_dest_id.id, move.location_id.id]
+                [move_line.location_dest_id.id, move_line.location_id.id]
             )
-            reserved_locs = move._get_reserved_locations()
-            dest_locs = move._get_dest_locations()
+            reserved_origin_loc = move_line.location_id
+            dest_loc = move_line.location_dest_id
             if (
                 locked_location_ids
                 and not any(
                     [
-                        move.location_dest_id.usage == "inventory",
-                        move.location_id.usage == "inventory",
+                        move_line.location_dest_id.usage == "inventory",
+                        move_line.location_id.usage == "inventory",
                     ]
                 )
                 and (
-                    move.location_dest_id in locked_location_ids
-                    or any([loc in locked_location_ids for loc in dest_locs])
-                    or any([loc in locked_location_ids for loc in reserved_locs])
+                    reserved_origin_loc in locked_location_ids
+                    or dest_loc in locked_location_ids
                 )
             ):
                 location_names = locked_location_ids.mapped("complete_name")
                 raise ValidationError(
                     _(
-                        "An inventory is being conducted at the following "
-                        "location(s):\n - %s"
+                        "Inventory adjusment underway at "
+                        "the following location(s):\n- %s\n"
+                        "Moving products to or from these locations is "
+                        "not allowed until the inventory check is complete."
                     )
                     % "\n - ".join(location_names)
                 )