diff --git a/litellm/integrations/SlackAlerting/slack_alerting.py b/litellm/integrations/SlackAlerting/slack_alerting.py
index d7d06387d85..98609c03c1c 100644
--- a/litellm/integrations/SlackAlerting/slack_alerting.py
+++ b/litellm/integrations/SlackAlerting/slack_alerting.py
@@ -658,7 +658,10 @@ class SlackAlerting(CustomBatchLogger):
         Create a standard message for a budget alert
         """
         _all_fields_as_dict: Final = user_info.model_dump(exclude_none=True)
-        _all_fields_as_dict.pop("token")
+        # CallInfo.token is Optional and exclude_none=True drops it when unset, so
+        # this must tolerate its absence. It is unset for JWT-authenticated
+        # requests, where UserAPIKeyAuth is built without a token.
+        _all_fields_as_dict.pop("token", None)
         msg = ""
         for k, v in _all_fields_as_dict.items():
             if isinstance(v, Litellm_EntityType):
diff --git a/tests/test_litellm/integrations/SlackAlerting/test_slack_alerting_user_info_str.py b/tests/test_litellm/integrations/SlackAlerting/test_slack_alerting_user_info_str.py
new file mode 100644
index 00000000000..862dd96669c
--- /dev/null
+++ b/tests/test_litellm/integrations/SlackAlerting/test_slack_alerting_user_info_str.py
@@ -0,0 +1,60 @@
+import os
+import sys
+
+import pytest
+
+# Adds the grandparent directory to sys.path to allow importing project modules
+sys.path.insert(0, os.path.abspath("../.."))
+
+from litellm.integrations.SlackAlerting.slack_alerting import SlackAlerting
+from litellm.proxy._types import CallInfo, Litellm_EntityType
+
+
+def test_get_user_info_str_without_token():
+    """
+    CallInfo.token is Optional and model_dump(exclude_none=True) drops it when
+    unset, so _get_user_info_str must not assume the key is present.
+
+    It is unset for JWT-authenticated requests: that auth path builds
+    UserAPIKeyAuth without a token, so a team soft-budget alert for a JWT caller
+    reaches here with token=None. Popping it unconditionally raised
+    KeyError: 'token', which propagated out of ProxyLogging.budget_alerts() and
+    aborted the alert - including the email alert dispatched after the Slack one.
+    """
+    slack_alerting = SlackAlerting()
+
+    user_info = CallInfo(
+        spend=25.0,
+        soft_budget=10.0,
+        team_id="my-team",
+        team_alias="My Team",
+        event_group=Litellm_EntityType.TEAM,
+    )
+
+    msg = slack_alerting._get_user_info_str(user_info)
+
+    assert "token" not in msg
+    assert "*spend:* `25.0`" in msg
+    assert "*soft_budget:* `10.0`" in msg
+    assert "*team_id:* `my-team`" in msg
+    # Litellm_EntityType is rendered as its value, not the enum repr
+    assert "*event_group:* `team`" in msg
+
+
+def test_get_user_info_str_omits_token_when_present():
+    """A token, when set, is still excluded from the alert message."""
+    slack_alerting = SlackAlerting()
+
+    user_info = CallInfo(
+        spend=5.0,
+        max_budget=10.0,
+        token="sk-hashed-token-value",
+        user_id="my-user",
+        event_group=Litellm_EntityType.KEY,
+    )
+
+    msg = slack_alerting._get_user_info_str(user_info)
+
+    assert "sk-hashed-token-value" not in msg
+    assert "token" not in msg
+    assert "*user_id:* `my-user`" in msg