Here we would like to draw your attention to OMRB 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).OMRB is a transaction code used for C MR Tolerance Groups in SAP.
It comes under the package MR0C.
Transaction OMRB technical data table
|Purpose||C MR Tolerance Groups|