Here we would like to draw your attention to VB(2 transaction code in SAP. As we know it is being used in the SAP SD-MD (Master Data in SD) component which is coming under SD module (Sales & Distribution).VB(2 is a transaction code used for Rebate Agreement Type Maintenance in SAP.
It comes under the package VKON.
Transaction VB(2 technical data table
|Purpose||Rebate Agreement Type Maintenance|