Whenever you execute a selected global change, the program process the change based on any new data entered in the database since the Last run on date. This date displays in the Global Changes grid on the Global Changes page.
If for some reason, you want the program to process the change for all selected records, regardless of if the records were included in the last execution of the global change, you can reset the Last run on date by selecting the instance in the Global Changes grid and clicking Reset last run on date. A confirmation screen appears. Click Yes to reset the Last run on date.