Full admin rights get handed out because precise access is too hard to set up.
Nobody can say for certain what a given role is actually allowed to do.
The same person needs different access in the customer app and the back office — and usually ends up with too much in both.
Least privilege that's practical to run — and easy to prove.
Grant exactly what each role needs, without a spreadsheet of exceptions.
Decide which roles can sign in to which app. A customer account can't open your back office.
Hide or lock individual pieces of information by role.
Your admins adjust roles from a clear screen — no developer needed.
Every action is checked, every time. No forgotten back doors.
Allowed and refused actions are both on record, ready when an auditor asks.
Access questions every growing business runs into.
It's refused. That app only accepts the roles you allow.
They see what they need. Editing stays locked.
Remove their role and their access ends everywhere at once.
You have the answer, with the record to back it up.