AR System Message Catalog
ARERR  You cannot change the value of the Submitter field -- the 'Submitter Mode' of the system is configured to be locked.
- AR System server
- Server messages and notifications
The system can be configured with a Submitter Mode of Locked or Changeable. You configured the system with a value of Locked. In this mode, the value of the Submitter field cannot be changed after submission (even by the administrator).