Hi,
Which version of IS you are using ?
Also as a rule of thumb, I would advice that the incoming XML from source system should follow the W3C norms. In case of any special characters in XML, it should have escape sequences.
However, sometimes we face such kind of problems, I have checked it in webMethods 7.1 and it is not giving any error.
Regards,
Sumit
#webMethods#Integration-Server-and-ESB#Flow-and-Java-services