Allows a media owner or a buyer organization to get a list of creative approvals.
* To include creative files info such as the URLs, use the $expand query parameter - Example: $expand=creative.creative_files- To retrieve approvals with a specific state, use the $filter query parameter, filtering on the state field. - The possible approval states are A for Approved, P for pending and R for rejected. - Example: $filter=state eq 'A' will only return approvals that have already been approved.