Why are "Created By" , "Updated" and "Updated By" fields on Audit History BlankSummaryAudit History on any record comes from sys_history_set. The data on this table is created "on the fly" using data from sys_audit, sys_journal_field,sys_email,sys_audit_relation, and actual tables. Audit history will be deleted if the record is not opened in the past 28 days. As we understood Created By, Updated and Updated By fields are misleading the User into thinking those are the date-time values for the record changes, we kept them as null and redirected to use the "Update time" and "User Name" fields The "Update Time" field will show the time at which the field value is changed in the record. The "User Name" field shows the User details of who changed the value in the record. Created field shows when the time at which the Audit history is created. Note: Do not consider Created time as the field value change time. It is when the Audit history is created. It can be the same time when we open the record.Related LinksHistory sets - How are they generated Auditing and history sets | How they work together