Currently there is no restriction placed on who a user can assign as a replacement. It would be good if a validation can be built into the system so that the user can only assign a replacement to another user with the same or a higher profile
We do not have any plans for a feature lke this. There are multiple different employee to employee relationships in Replicon (Same department, same location, same project, employee-supervisor, employee project-manager, program manager etc to name a few) and that would lead to a very complicated definition of same profile. Therefore, it will be difficult to allow for such a validation. The best I can offer by way of a workaround is to use the User Detail report to scn through the substitute users who have been setup, and communicate to the user where it looks like the substitute is not the correct person.