Here we would like to draw your attention to OIRR transaction code in SAP. As we know it is being used in the SAP PM (Plant Maintenance) module. OIRR is a transaction code used for Field Sel. Serial No PM Notification in SAP.
It comes under the package INSC.When we execute this transaction code, RIOFSE00 is the normal standard SAP program that is being executed in background.
Transaction OIRR technical data table
| Tcode | OIRR |
| Purpose | Field Sel. Serial No PM Notification |
| Module | PM |
| SAP Package | INSC |
| Program running | RIOFSE00 |
| Type | R |