A CorrelationID value is required for each AddMemberMessagesAAQToBidderRequestContainer container that is used in the request. The CorrelationID value returned under each AddMemberMessagesAAQToBidderResponseContainer container is used to correlate each member message container in the request with its corresponding member message container in the response. The same CorrelationID value that you pass into a request will be returned in the CorrelationID field in the response.
See the Field Index to learn which calls use CorrelationID.