AR System Message Catalog
ARERR  The entry you are working on was modified by another user after the last time you retrieved it.
- AR System server
- Server messages and notifications
The entry you are trying to modify was modified by another user after the last time you retrieved the definition. The changes made might impact your changes. You can override this error and apply the changes. If you apply the changes (and override the error), all changes you make take precedence over the changes made by the previous user. If you do not apply your changes, the previous user's changes are retained.