GET_CHANGES

If an object was changed returns which attributes have been changed as well as old and new values

GET_CHANGES (object)

Cannot be used in the condition of a FIND action.

Object name that has been changed

Text: a description of changed attributes with their old and new values.

IF MyObject WAS CHANGED THEN
   CREATE AuditRecord WITH 
    AuditRecord.Description = GET_CHANGES(MyObject)