OK Button
Clicking the "OK" button will save any pending changes to the company file and close the Company Maintenance window. You will be taken back to the Main Menu after clicking this button.
Cancel Button
Clicking the "Cancel" button will discard any pending changes to the company file and close the Company Maintenance window. You will be taken back to the Main Menu after clicking this button.
Apply Button
Clicking the "Apply" button will save any pending changes to the company file. This button is useful if you want to save pending changes, but not exit out of the Company Maintenance window.