I know I can create promoted-only tweets on behalf of other user, by setting the “as_user_id” parameter when calling the “/accounts/:account_id/tweet” Tweeter Ads API function.
I would like to know which user gets billed for such such promote tweets. If the user A creates promoted tweets on behalf of user B (using the “as_user_id” parameter and “/accounts/:account_id/tweet” Tweeter Ads API function), who gets billed when those tweets are being clicked upon? User A or user B?
Thank you for your answer.