diff --git a/base_tier_validation/models/tier_validation.py b/base_tier_validation/models/tier_validation.py
index b4bc21a2a7..63f4bbc09a 100644
--- a/base_tier_validation/models/tier_validation.py
+++ b/base_tier_validation/models/tier_validation.py
@@ -278,9 +278,9 @@ def evaluate_tier(self, tier):
             return self
 
     @api.model
-    def _get_validation_exceptions(self, extra_domain=None, add_base_exceptions=True):
+    def _get_exception_fields(self, extra_domain=None):
         """Return Tier Validation Exception field names that matchs custom domain."""
-        exception_fields = (
+        return (
             self.env["tier.validation.exception"]
             .sudo()
             .search(
@@ -295,6 +295,11 @@ def _get_validation_exceptions(self, extra_domain=None, add_base_exceptions=True
             )
             .mapped("field_ids.name")
         )
+    
+    @api.model
+    def _get_validation_exceptions(self, extra_domain=None, add_base_exceptions=True):
+        """Return Tier Validation Exception field names that matchs custom domain."""
+        exception_fields = self._get_exception_fields(extra_domain=extra_domain)
         if add_base_exceptions:
             exception_fields += BASE_EXCEPTION_FIELDS
         return list(set(exception_fields))