diff --git a/src/aks-preview/azext_aks_preview/managed_cluster_decorator.py b/src/aks-preview/azext_aks_preview/managed_cluster_decorator.py
index 93509957319..9d16c0db525 100644
--- a/src/aks-preview/azext_aks_preview/managed_cluster_decorator.py
+++ b/src/aks-preview/azext_aks_preview/managed_cluster_decorator.py
@@ -321,7 +321,7 @@ def _get_outbound_type(
                             "be pre-configured with a route table with egress rules"
                         )
 
-                if outbound_type == CONST_OUTBOUND_TYPE_USER_DEFINED_ROUTING:
+                if self.decorator_mode == DecoratorMode.CREATE and outbound_type == CONST_OUTBOUND_TYPE_USER_DEFINED_ROUTING:
                     if load_balancer_profile:
                         if (
                             load_balancer_profile.managed_outbound_i_ps or