Audit Log

You might say

An administrator changed a permission. Show who changed what, when, and whether the action succeeded or was denied.

An audit log records who did what to which object, when, and with what result.After an administrator changes the billing-editor role, an audit log can record the actor, time, target, action, and success or denial so the permission change can be investigated. It is different from an error log that explains a program failure and from monitoring that observes health signals; request data may contain sensitive information, so its scope and access need control.
Audit Log
Further reading