diff --git a/models/res_partner.py b/models/res_partner.py
index 92bd77c..e9d416e 100644
--- a/models/res_partner.py
+++ b/models/res_partner.py
@@ -46,27 +46,22 @@ class ResPartner(models.Model):
     @api.model_create_multi
     def create(self, vals_list):
         partners = super().create(vals_list)
-        
-        # Check context or stack trace to see if we are creating an internal user or employee
-        import sys
-        is_internal_creation = False
-        frame = sys._getframe()
-        while frame:
-            filename = frame.f_code.co_filename
-            if 'res_users.py' in filename or 'hr_employee.py' in filename:
-                is_internal_creation = True
-                break
-            frame = frame.f_back
 
-        # Also respect standard Odoo install and import bypass flags
-        if is_internal_creation or self.env.context.get('install_mode') or self.env.context.get('import_file'):
+        # Skip auto-Silver assignment for system/internal partner creations.
+        # Internal callers (res_users, hr_employee, etc.) should pass
+        # context key 'no_loyalty_auto_assign=True' to suppress this logic.
+        if (
+            self.env.context.get('install_mode')
+            or self.env.context.get('import_file')
+            or self.env.context.get('no_loyalty_auto_assign')
+        ):
             return partners
 
         for partner in partners:
             if partner.is_company:
                 continue
-            
-            # Find the lowest membership program level (Membership Silver)
+
+            # Find Membership Silver first, then fall back to lowest spend program
             lowest_program = self.env['loyalty.program'].sudo().search(
                 [('multi_level_membership', '=', True), ('manual_membership', '=', False), ('name', '=ilike', 'Membership Silver')],
                 limit=1
@@ -88,8 +83,10 @@ class ResPartner(models.Model):
                         'program_id': lowest_program.id,
                         'points': 0,
                     })
-                
-                if hasattr(partner, 'membership_level_id') and not partner.membership_level_id:
+
+                # Always write membership_level_id if not already set.
+                # pos_loyalty_multi_level is a hard dependency so the field always exists.
+                if not partner.membership_level_id:
                     partner.sudo().write({'membership_level_id': lowest_program.id})
-                    
+
         return partners