With WS-ReliableMessaging, along with the other components of the Reliable Asynchronous Messaging Profile and the Reliable Secure Profile, you can support the business-to-business Web services scenarios that are becoming business critical, without having to write your own custom retry logic, duplicate detection code and persistence code.
WS-ReliableMessaging composes with other Web services standards as described in WS-ReliableMessaging: supported specifications and standards.