Here we would like to draw your attention to J1GP01 transaction code in SAP. As we know it is being used in the SAP MM(Materials Management) module. J1GP01 is a transaction code used for Pu posting in SAP.
It comes under the package J1G4.When we execute this transaction code, J_1GPUPOSTING is the normal standard SAP program that is being executed in background.
Transaction J1GP01 technical data table