diff --git a/litellm/llms/fine_tuning_apis/vertex_ai.py b/litellm/llms/fine_tuning_apis/vertex_ai.py
index c24deca941..5f96f04831 100644
--- a/litellm/llms/fine_tuning_apis/vertex_ai.py
+++ b/litellm/llms/fine_tuning_apis/vertex_ai.py
@@ -278,7 +278,8 @@ class VertexFineTuningAPI(VertexLLM):
             url = f"https://{vertex_location}-aiplatform.googleapis.com/v1/projects/{vertex_project}/locations/{vertex_location}{request_route}"
         elif "countTokens" in request_route:
             url = f"https://{vertex_location}-aiplatform.googleapis.com/v1/projects/{vertex_project}/locations/{vertex_location}{request_route}"
-
+        else:
+            raise ValueError(f"Unsupported Vertex AI request route: {request_route}")
         if self.async_handler is None:
             raise ValueError("VertexAI Fine Tuning - async_handler is not initialized")
 
diff --git a/litellm/proxy/vertex_ai_endpoints/vertex_endpoints.py b/litellm/proxy/vertex_ai_endpoints/vertex_endpoints.py
index c7ce354b25..b8c04583c3 100644
--- a/litellm/proxy/vertex_ai_endpoints/vertex_endpoints.py
+++ b/litellm/proxy/vertex_ai_endpoints/vertex_endpoints.py
@@ -76,6 +76,10 @@ async def execute_post_vertex_ai_request(
 ):
     from litellm.fine_tuning.main import vertex_fine_tuning_apis_instance
 
+    if default_vertex_config is None:
+        raise ValueError(
+            "Vertex credentials not added on litellm proxy, please add `default_vertex_config` on your config.yaml"
+        )
     vertex_project = default_vertex_config.get("vertex_project", None)
     vertex_location = default_vertex_config.get("vertex_location", None)
     vertex_credentials = default_vertex_config.get("vertex_credentials", None)