Hi, I'm confused about options for changing contact status from OPTOUT to ACTIVE via API. I do understand that it must be triggered by the user himself.
Your documentation on Opting contacts back in seems to say that if I set action_by to ACTION_BY_VISITOR then I should be able to do that with the PUT method. However, when I look at documentation for Individual Contacts / PUT the description for both contact status and e-mail address status says "(Read Only)".
Also, when I use your Mashery API Tester/debugger (indispensable, by the way), I get an error when I try anyway. I did use ACTION_BY_VISITOR.