Here we would like to draw your attention to OPSK transaction code in SAP. As we know it is being used in the SAP PS-ST (Structures in PS) component which is coming under PS module (Project Systems).OPSK is a transaction code used for Maintain Special Characters in SAP.
It comes under the package CN_EDIT.
Transaction OPSK technical data table
| Tcode | OPSK |
| Purpose | Maintain Special Characters |
| Module | PS |
| Component | PS-ST |
| SAP Package | CN_EDIT |
| Type | P |