I’ve had this problem before, yes. Since you say you’re filling out every input field, I wouldn’t know why you’d be getting this error, however. I got the null pointer exception when I left the orderBy field blank. Also, be sure that if you don’t want to specify a receiverID but you do want to specify a senderID (or visa versa), don’t just leave the value unassigned. Assign it a blank value.
This probably doesn’t help, but maybe it will to someone else.
#edi#webMethods#Integration-Server-and-ESB