Here we would like to draw your attention to OPT1 transaction code in SAP. As we know it is being used in the SAP PS-MAT (Material in PS) component which is coming under PS module (Project Systems).OPT1 is a transaction code used for Maintain PS Transaction Types in SAP.
It comes under the package CN_MAT.
Transaction OPT1 technical data table
|Purpose||Maintain PS Transaction Types|