Is there a way to access an audit trail for changes to MOS setup? For example, the user/timestamp for when an MOS was added to or deleted from a performance.
Audits are all trigger based. Find the lowest level table and see if there's a trigger that enters data in the TA_AUDIT_TRAIL. If there isn't one, you can certainly add a local trigger to do this. You would need an Insert, Delete, and Update triggers to do this. There's also interceptors if you want to go down that route.