Here we would like to draw your attention to OMKF transaction code in SAP. As we know it is being used in the SAP MM-PUR (Purchasing in MM) component which is coming under MM module (Material Management).OMKF is a transaction code used for C MM-PUR: Exlusion Indicators in SAP.
It comes under the package ME0C.
Transaction OMKF technical data table
|Purpose||C MM-PUR: Exlusion Indicators|