Here we would like to draw your attention to OIR1 transaction code in SAP. As we know it is being used in the SAP PM (Plant Maintenance) module. OIR1 is a transaction code used for FieldSel. PartnType Customer 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 OIR1 technical data table
|Purpose||FieldSel. PartnType Customer|