App Permissions Not working as Documented

I have an App coded and everything is working except “Contacts”.


All I want to do is list the contacts. (I already do this for Wix Bookings etc) and it works fine.

It says the App needs “Manage Members and Contacts - all permissions” which I just gave to it. Still getting a 403 even with every permission on the list.

If I use the test token from the API playground it works fine. (code is solid)

So: Is there some reason I cannot add a permission to an App and have it immediately reflected; using all the same CID, Secret, Token?

Anyone? Clearly doesn’t work …