Messaging APIsAppend Tag to An Existing MessageAsk AIpost https://www.sendsonar.com/api/v1/messages/{external_message_id}/tagsPath Paramsexternal_message_idstringrequiredthe external_message_id can be found from our outbound, new assigned, and new unassigned webhook events.Body Paramstag_namestringthe name of the tag (unique)Responses 200200 404404Updated less than a minute ago