Revision Level Display 
The revision level to which materials have been assigned in SAP ERP can also be displayed in the SAP SRM system. If different revision levels are available for a material replicated from SAP ERP, you can choose between them in the SAP SRM business objects.
This function is mainly used in the business scenario Plan-Driven Procurement with Plant Maintenance.
You are using SAP ERP 2005 Support Pack 9 or higher
The product type of the product for which you want to display the revision level is Material
The product ID has been replicated from SAP ERP
You are using a homogenous system landscape, that is, the revision level for the product is the same in all connected backend systems
You activate the Revision Level field from SAP ERP in Customizing for SAP Supplier Relationship Management under . Revision level activation is available for the following business objects:
Shopping cart
Purchase order
Purchase order response
Confirmation
Invoice
Central contract
RFx
RFx response
Auction
To activate the Revision Level field for the shopping cart, insert structure field name REV_LEV and Bus Obj Typ BUS 2121 in the view /SAPSRM/V_MDF_IC and set the Visible and Enabled indicators.