Arvola, Yes, I agree. We don't need to say anything. On your comment about using different versions. When I create an ebXML document and it points to a particular version, then when you receive, you have to use the same url (same version) that I specify to validate. Am I missing something here? If the receiver has to cache a local, modified copy, then we have a situation as bad as the current fix (capture this parser error and continue). Of course, the best solution is to take this error to the parser developers and quit trying to fix this ourselves. This problem goes far beyond ebXML. David.