Here we would like to draw your attention to OMRN 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).OMRN is a transaction code used for C MM-IV Carry Forward Price Change in SAP.
It comes under the package MR.
Transaction OMRN technical data table
|Purpose||C MM-IV Carry Forward Price Change|