Here we would like to draw your attention to OPO9 transaction code in SAP. As we know it is being used in the SAP PS-COS (Costs in PS) component which is coming under PS module (Project Systems).OPO9 is a transaction code used for View Maintenance V_TCJ41_9 in SAP.
It comes under the package KAPS.
Transaction OPO9 technical data table
|Purpose||View Maintenance V_TCJ41_9|