Here we would like to draw your attention to PX05 transaction code in SAP. As we know it is being used in the SAP PP-MP (Production Planning – PP) component which is coming under PP module (Production Planning).PX05 is a transaction code used for External Planning Tool: Lock Table in SAP.
It comes under the package CPFS.
Transaction PX05 technical data table
|Purpose||External Planning Tool: Lock Table|