Has budgets for end-users been implemented?

[lassib]

According to the docs it should be possible to apply budgets to end-users:
https://docs.litellm.ai/docs/proxy/customers#setting-customer-budgets

But when I try to apply it using the API endpoint of /customer/update I keep getting an error:

{
  "error": {
    "message": "Internal Server Error, Field: \"litellm_endusertable\" either does not exist or is not a relational field on the LiteLLM_BudgetTable model",
    "type": "internal_error",
    "param": "None",
    "code": "500"
  }
}

I can apply the budget to end-users by manipulating the DB table "LiteLLM_EndUserTable" and budget limit seems to apply and work properly. Now if I try to change the budged for that specific end-user using /customer/update endpoint it tries to change the name/id of the budget and not the actual budget.

[krrishdholakia]

what version is this?

and can you share a few sample curls for repro?

[lassib]

Hey thanks for making me go trough the steps again to realize it's working now! I think what caused the previous issue was that I was getting this collation version mismatch error in the litellm_db container:

litellm_db | 2025-09-18 11:44:32.742 UTC [40] WARNING: database "litellm" has a collation version mismatch litellm_db | 2025-09-18 11:44:32.742 UTC [40] DETAIL: The database was created using collation version 2.36, but the operating system provides version 2.41.

I managed to fix it by running:
ALTER DATABASE litellm REFRESH COLLATION VERSION;

This is the only change I have made to our LiteLLM setup between now and submitting the question. Please let me know if I somehow caused the collation version mismatch or is it just something that you have to deal with when it occurs?

Version = v1.76.1-stable