Here we would like to draw your attention to OIRN transaction code in SAP. As we know it is being used in the SAP PM (Plant Maintenance) module. OIRN is a transaction code used for FieldSelect. Ser.No. Delivery 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 OIRN technical data table
| Tcode | OIRN |
| Purpose | FieldSelect. Ser.No. Delivery |
| Module | PM |
| SAP Package | INSC |
| Program running | RIOFSE00 |
| Type | R |