I've created a Service Project based off the HR template. Inside there is a form which is attached to an issue type. The issue type has a field called "Approver" - This would be where users enter in their line manager who would either approve or deny their request/issue. Some users can see and search for a large number of users in this field, some users see a much shorter list and some users see no one at all.
How can I ensure all users see the same list of people so they can search for their line manager with out any issues?
Any help is appreciated, thank you.