fix - update webhook event validation

litellm/integrations/slack_alerting.py

@@ -655,6 +655,9 @@ class SlackAlerting(CustomLogger):
             _id = user_info.token
 
         # percent of max_budget left to spend
+        if user_info.max_budget is None:
+            return
+
         if user_info.max_budget > 0:
             percent_left = (
                 user_info.max_budget - user_info.spend

litellm/proxy/_types.py

@@ -1093,7 +1093,7 @@ class CallInfo(LiteLLMBase):
     """Used for slack budget alerting"""
 
     spend: float
-    max_budget: float
+    max_budget: Optional[float] = None
     token: str = Field(description="Hashed value of that key")
     user_id: Optional[str] = None
     team_id: Optional[str] = None