Clients in the Test Mode Tier can only request user-based tokens linked to the owner of the client.
I have an actual owner account with VRBO so I assumed this was the issue. I cleared all cookies and then proceeded to try again. On the Authorization page I chose "Traveler" and logged in with my "api developer" credentials...still got the same error. Anyone know what I am doing wrong?
Also how do we get moved out of the Test Tier and into the actual production site?