Hi Chris,
My guess is that you are trying to do account linking while logged in as a
user who doesn't have right permissions. Since this question is not API
specific, you might want to ask it on the AdWords forum too.
http://www.google.com/support/forum/p/AdWords?hl=en.
Cheers,
Anash P. Oommen
What does it mean when ones gets the error "You don't have permission to
perform this action." when attempting to link for API access? I don't get
the error if I link for "User Interface and API". Does a "User Interface and
API" link have to be present before an "API only" link can be establish
