Here we would like to draw your attention to OIWR transaction code in SAP. As we know it is being used in the SAP PM (Plant Maintenance) module. OIWR is a transaction code used for Reference Location Structure 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 OIWR technical data table
| Tcode | OIWR |
| Purpose | Reference Location Structure |
| Module | PM |
| SAP Package | INSC |
| Program running | RIOFSE00 |
| Type | R |