3688239 - Why is the Purchase Order amount displayed in the Orders search page and the in Puchase Order page of SAP Business Network different?

The orders listed in the search results from the Orders workbench option displays amount in the Amount column which is different from the Sub-Total present in the Purchase Order details when opened for one particular purchase order (PO).

Sap business network, commerce automation, purchase order, overview page, orders page, amount discrepancy, cXML file, total amount, calculation mechanism, purchase order detail, rounding error , KBA , SBN-AN-TX-POA , Transaction (Purchase Orders, Ship Notices & Goods Receipts) , SBN-AN-ADM , Administration (Buyer & Supplier Account Administration) , Problem