Dedupe team soft budget alerts by team_id instead of token

_team_soft_budget_check sends type="soft_budget" alerts with
event_group=TEAM, but SoftBudgetAlert.get_id always returned the
request token. The alert cache key was therefore scoped per virtual
key, so every active key in a team over its soft budget fired its own
alert within budget_alert_ttl. Branch on event_group so team-level
alerts dedupe by team_id, matching TeamBudgetAlert, while key and
project level alerts keep per-token dedupe.

Fixes #27398.

litellm/integrations/SlackAlerting/budget_alert_types.py

@@ -1,7 +1,7 @@
 from abc import ABC, abstractmethod
 from typing import Literal
 
-from litellm.proxy._types import CallInfo
+from litellm.proxy._types import CallInfo, Litellm_EntityType
 
 
 class BaseBudgetAlertType(ABC):
@@ -31,6 +31,8 @@ class SoftBudgetAlert(BaseBudgetAlertType):
         return "Soft Budget Crossed: "
 
     def get_id(self, user_info: CallInfo) -> str:
+        if user_info.event_group == Litellm_EntityType.TEAM:
+            return user_info.team_id or "default_id"
         return user_info.token or "default_id"
 
 

tests/test_litellm/integrations/SlackAlerting/test_budget_alert_types.py

@@ -28,6 +28,31 @@ class TestSoftBudgetAlert:
         result = alert.get_id(user_info)
         assert result == "default_id"
 
+    def test_get_id_returns_team_id_for_team_event_group(self):
+        """Team soft budget alerts dedupe by team, not by the calling key's token"""
+        alert = SoftBudgetAlert()
+        user_info = CallInfo(
+            spend=120.0,
+            token="test_token_123",
+            team_id="team_456",
+            event_group=Litellm_EntityType.TEAM,
+        )
+
+        result = alert.get_id(user_info)
+        assert result == "team_456"
+
+    def test_get_id_returns_default_id_for_team_event_group_without_team_id(self):
+        alert = SoftBudgetAlert()
+        user_info = CallInfo(
+            spend=120.0,
+            token="test_token_123",
+            team_id=None,
+            event_group=Litellm_EntityType.TEAM,
+        )
+
+        result = alert.get_id(user_info)
+        assert result == "default_id"
+
     def test_get_id_with_empty_token(self):
         """Test that get_id returns 'default_id' when token is empty string"""
         alert = SoftBudgetAlert()