Do you face this error when you try to create a responsive ad in the AdWords UI? If so, I would suggest that you post your question on the
AdWords Community Forum as they are better equipped to address this issue. On this forum, we address technical issues related to AdWords API. If you're unable to add responsive ads using
AdWords API, please provide more details of the error encountered. Any SOAP request and response logs you have pertaining to this issue will be helpful. Please use
Reply privately to author when responding.
Shwetha, AdWords API Team.