Here we would like to draw your attention to OPOC 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).OPOC is a transaction code used for View Maintenance V_T399X_N0 in SAP.
It comes under the package KAPS.
Transaction OPOC technical data table
| Tcode | OPOC |
| Purpose | View Maintenance V_T399X_N0 |
| Module | PS |
| Component | PS-COS |
| SAP Package | KAPS |
| Type | P |