Because FAST security is role-based, the audit log lets you answer questions such as: When was a user added to or removed from a role? Why did a user gain or lose access? Were onboarding or offboarding security changes completed correctly? Was a temporary or expiring role assigned? Who made an unexpected security change? Was a change made manually or through automation? In short: The User/Role Assignment Audit Log provides a historical record of changes to user-role assignments, allowing administrators to troubleshoot access, verify security changes, and support security audits.