Well… XSLT itself can do this. Just the mapper will probably not allow it since you’ll not be matching the output schema you have defined…
Here are two possible ways. I don’t remember off hand what level of validation the mapper does on the document.
- You might be able to use XSLT and output your result to the <ANY> node.
- Use pure custom XSLT for the whole map. You’ll probably also have to use the <Any> node in your schema so you can set an output message type.
Just some ideas to try.