Could anyone please point me towards the API endpoint for listing which userDataFilters apply to a specific user?

Hi William, You need to use the layout endpoint for user data filters (UDFs) in order to list all the UDFs and their assigned user ids: https://www.gooddata.com/docs/cloud/workspaces/user-data-filters/#SetUpDataFiltersforUsers-AddJSONDocumenttoWorkspace The endpoint is:

HOST_URL/api/v1/layout/workspaces/<workspace-id>/userDataFilters

So I'm assuming the id is

someuserid-services

, and by removing

-services

I can find the user that each UDF applies to?

You should be able to use the full-text search within the API response and search for a particular user in question.