Here we would like to draw your attention to OMRMB 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).OMRMB is a transaction code used for Screen Selection Header Data Screen in SAP.
It comes under the package MR0C.
Transaction OMRMB technical data table
|Purpose||Screen Selection Header Data Screen|