How to Prevent Users From Changing the Requisition Number on a Requisition

Users are able to change the Requisition number on a requisition. How can they be prevented from doing this?

Munis

Requisition Entry

Roles

Users have a role assigned to them that has the Override default requisition number permission.

If a user has a role assigned to them with the Override default requisition number permission checked, then they can change the Requisition number field on a requisition. If you do not want users to be able to do this, then you can remove this permission from roles assigned to them. This permission is located in System Administration > Security > Roles > Requisitions.