Here we would like to draw your attention to OIRB transaction code in SAP. As we know it is being used in the SAP PM (Plant Maintenance) module. OIRB is a transaction code used for PM Object Contracts in SAP.
It comes under the package INSC.When we execute this transaction code, RIOCUS00 is the normal standard SAP program that is being executed in background.
Transaction OIRB technical data table
|Purpose||PM Object Contracts|