Audit rows are immutable.
Material changes include actor, timestamp, source, old value, new value, origin, and reason.
Viewers can inspect audit history.
Audit history is the record for explaining spend movement.
Audit log
Review creates, corrections, imports, sync events, exports, and rule applications.
Make every marketing number defensible.
Bring imports, manual corrections, calculated metrics, audit history, and Google Sheets exports into one controlled workflow.