The following is a list of useful and frequently used transactions in the SAP modules PM (Plant Maintenance) and CS (Customer Service) that I just re-discovered in an old Google Site of mine.
| Transaction Code | Description | | ———– | ———– | | IW31 | Create Work/Service Order | | IW32 | Edit Work/Service Order | | IW33 | Display Work/Service Order | | IW37 | Work/Service Order selection by operation | | IW38 | Work/Service Order selection | | IW41 | Create Order Confirmation | | IW21 | Create Notification | | IW22 | Edit Notification | | IW23 | Display Notification | | IE01 | Create Equipment | | IE02 | Edit Equipment | | IE03 | Display Equipment | | IL01 | Create Functional Location | | IL02 | Edit Functional Location | | IL03 | Display Functional Location | | CL02 | Create Class | | CT04 | Create Characteristics |

It might help in the future.