I was about to put in a request for help with getting datasource permissions setup, but lucky me it’s very similar to Jani’s request right above this, so I simply added on to his thread, but please do still need help as well - I need members of some userGroups to be able to be given USE permission to the Datasource, and trying to update this via the /api/v1/layout/dataSources API endpoint is pain and sorrow (and not even related to the parts I changed, you can’t even PUT back the JSON you receive from GET and have it PUT without an error.)