Publisher's unique identifier for the created media buy
Buyer's reference identifier for this media buy
Optionalcreative_deadline?: stringISO 8601 timestamp for creative upload deadline
Array of created packages with complete state information
Optionalcontext?: ContextObjectOptionalext?: ExtensionObjectArray of errors explaining why the operation failed
Optionalcontext?: ContextObjectOptionalext?: ExtensionObject
Response payload for create_media_buy task. Returns either complete success data OR error information, never both. This enforces atomic operation semantics - the media buy is either fully created or not created at all.