diff --git a/fusion_plating/CLAUDE.md b/fusion_plating/CLAUDE.md
index 447d0862..02b16a2f 100644
--- a/fusion_plating/CLAUDE.md
+++ b/fusion_plating/CLAUDE.md
@@ -240,7 +240,7 @@ Use only: `name`, `model_id`, `state`, `code` (or `function`/`model`), `interval
         'fusion_plating.group_fp_owner',
     )]
     users = env['res.users'].sudo().search([
-        ('groups_id', 'in', shop_branch_ids),
+        ('group_ids', 'in', shop_branch_ids),  # NB: group_ids not groups_id in Odoo 19, see rule 13c
         ('share', '=', False), ('active', '=', True),
     ])
     ```
diff --git a/fusion_plating/fusion_plating_shopfloor/__manifest__.py b/fusion_plating/fusion_plating_shopfloor/__manifest__.py
index 6c9ca722..49ba505d 100644
--- a/fusion_plating/fusion_plating_shopfloor/__manifest__.py
+++ b/fusion_plating/fusion_plating_shopfloor/__manifest__.py
@@ -5,7 +5,7 @@
 
 {
     'name': 'Fusion Plating — Shop Floor',
-    'version': '19.0.32.0.12',
+    'version': '19.0.32.0.13',
     'category': 'Manufacturing/Plating',
     'summary': 'Shop-floor tablet stations, QR scanning, bake window enforcer, '
                'first-piece inspection gates.',
diff --git a/fusion_plating/fusion_plating_shopfloor/controllers/tablet_controller.py b/fusion_plating/fusion_plating_shopfloor/controllers/tablet_controller.py
index 6b88ebc8..c97fb7c9 100644
--- a/fusion_plating/fusion_plating_shopfloor/controllers/tablet_controller.py
+++ b/fusion_plating/fusion_plating_shopfloor/controllers/tablet_controller.py
@@ -242,8 +242,9 @@ class FpTabletController(http.Controller):
             return {'ok': False, 'error': 'shop-branch role groups missing'}
 
         Users = env['res.users'].sudo()
+        # Odoo 19 renamed res.users.groups_id -> group_ids (CLAUDE.md rule 13c).
         users = Users.search([
-            ('groups_id', 'in', group_ids),
+            ('group_ids', 'in', group_ids),
             ('share', '=', False),
             ('active', '=', True),
         ])