Here we would like to draw your attention to CY40 transaction code in SAP. As we know it is being used in the SAP PP-CRP (Capacity Requirements Planning – PP) component which is coming under PP module (Production Planning).CY40 is a transaction code used for Planning table sort key maintenance in SAP.
It comes under the package CY01.
Transaction CY40 technical data table
|Purpose||Planning table sort key maintenance|