We are looking to keep registered users/members' data in C5 (username, password, firstname, lastname, member status, member's group) updated from a 3rd party business management platform (that manages membership, association, business and events data) via an API from the platform. This API is likely to be in SOAP XML format. When any membership data or expiration of membership or changes to; username, password, firstname, lastname, member status, member's group are done on the platform this will need to be reflected in the C5 database, so that members can login correctly using the normal C5 login and using C5 permissions model to access members areas and features of the website.