Here we would like to draw your attention to OPPA transaction code in SAP. As we know it is being used in the SAP PP-MRP (Material Requirements Planning – PP) component which is coming under PP module (Production Planning).OPPA is a transaction code used for PP/MRP Customizing Explosion in SAP.
It comes under the package MD0C.
Transaction OPPA technical data table
|Purpose||PP/MRP Customizing Explosion|