Here we would like to draw your attention to OPI3 transaction code in SAP. As we know it is being used in the SAP PS-IS (Information System in PS) component which is coming under PS module (Project Systems).OPI3 is a transaction code used for Update Control: File RPSCO in SAP.
It comes under the package KAP0.
Transaction OPI3 technical data table
|Purpose||Update Control: File RPSCO|