PDO Lock on a product/material

Hello SAP Gurus

again i am in need of your advise/help.

I currently have an item that is showing available on both EWM and ERP due to it having a PDO lock.please see screen shot below:

I need to remove the PDO lock on this item so that my stock shows zero for this item as we donot have stock physically.The dcument in ERP has GI completed,does any one know how to remove the PDO reference?Please assist urgently.