Solution : https://service.sap.com/sap/support/notes/651782 (SAP Service marketplace login required)
Key words : 
receive double update, terms va02 reason, ea-ps release 1, attached correction instructions, sales order means, sales order created, -ps release 462 patch 0006, sales order, funds management, program error
Related Notes : 
       
| 669928 | FM irrelevant PO line item updates FM | 
| 650997 | Old sales orders are updated incorrectly | 
| 624007 | Incorrect FM udpate of sales order billing plan |