This is a new setup we did recently, and we are trying to receive a mainframe file on our AS/400 using TCP/IP XCOM. We have specified a valid user ID and password to the mainframe team to send the file but it did not work. This is from the XCOM log:
Note: user_ID is masked out from the original.
Password needed to be in upper case for AS/400.
The AS/400 typically has all USERIDs in UPPERCASE. Placing the USERID in UPPERCASE resolved the security error.
XCM7050 message in the online documentation.