The ******* replaced with my numeric seven digit campaign ID of course.
However, it gives me following error every time:
Unauthorized, The server could not verify that you are authorized to access the URL requested. You either supplied the wrong credentials (e.g. a bad password), or your browser doesn’t understand how to supply the credentials required.
I’m certain I send the correct token since the old API works fine with the link:
I figured out that you MUST register a v2 client for it and it works now!
Maybe this should be stated more clear in the documentation, as it is only mentioned in a side note at the moment and it sounds like its optional.