Varan explains auditing in ServiceNow

Auditing in ServiceNow
You can enable table auditing to track changes to all or some of the table's fields.
Tables : sys_audit, sys_audit_relation
BRs, workflows - To prevent performance issues and infinite loops, the system skips any business rule or workflow triggered by inserts to the Sys Audit table.
Enabling audit at table level - This will audit all fields on that table.
Inclusion list auditing for a table
- attribute - audit_type=whitelist on collection field
- attribute - audit=true - this applies only to a specific subclass
Exclude field from being audited
- attribute - no_audit=true - all the subclasses
Delete audited

References :

[yashjadhav]

Audit is enabled but not capture the records??