Use out-of-band group membership assignment as a trigger if you want the Entra team to have this control.
i.e. Create a group called “To be off-boarded by ISC” (or whatever makes sense), assigne this to the Entra account from Entra side of things. In your LCS transform, build the logic to look for that specific group membership and set the leaver LCS. Specifically look into " accountPropertyFilter ``
This approach allows other teams in the organization to have some degree of delegated control based on some pre-agreed criteria, without exposing ISC GUI to those teams, while they continue to use the front end that they’re familiar with, for better or for worse.
(And incorporate delta aggregation if you need frequent / anytime-of-the-day trigger)