The maintenance job performs three operations:
1. Releases documents left in Locked longer than Timeout.DocumentLockMin and returns them to PendingImportFile state
2. Deletes documents older than Maintenance.DocumentRetentionDays, including their working file and page images from the object store when found
3. Deletes batches whose modified time is older than Maintenance.BatchRetentionDays
The default maintenance interval is 1 hour.
Retention deletion is permanent. Set retention periods to satisfy business and legal requirements and verify backups before shortening them.