Here we would like to draw your attention to OPOB 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).OPOB is a transaction code used for View Maintenance V_T003O_N1 in SAP.
It comes under the package KAPS.
Transaction OPOB technical data table
|Purpose||View Maintenance V_T003O_N1|