Here we would like to draw your attention to OMRDC transaction code in SAP. As we know it is being used in the SAP MM-IV (Invoice Verification in MM) component which is coming under MM module (Material Management).OMRDC is a transaction code used for Configure Duplicate Invoice Check in SAP.
It comes under the package MR0C.
Transaction OMRDC technical data table
|Purpose||Configure Duplicate Invoice Check|