To obtain a overview at any time of the current situation for stocks of material provided to vendor, you can use report SC Stock Monitoring for Vendor (RM06ELLB).
The report provides the following information:
You can start the report from the Purchasing menu. Choose Purchase order ® Reporting ® SC stocks per vendor. For more information, refer to the report documentation.
From this list you can provide components for existing purchase orders. Refer toProviding Components for Existing Purchase Orders.