Here we would like to draw your attention to OMGC transaction code in SAP. As we know it is being used in the SAP MM-IS (Information System in MM) component which is coming under MM module (Material Management).OMGC is a transaction code used for C MM-PUR Weighting Keys in SAP.
It comes under the package MEL.
Transaction OMGC technical data table
|Purpose||C MM-PUR Weighting Keys|