Here we would like to draw your attention to OX18 transaction code in SAP. As we know it is being used in the SAP MM-IM (Inventory Management in MM) component which is coming under MM module (Material Management).OX18 is a transaction code used for Assignment Plants -> Company Code in SAP.
It comes under the package MB0C.
Transaction OX18 technical data table
|Purpose||Assignment Plants -> Company Code|