Error 8J 290 and Error in method PO_POST

Question

Hi Guys
When changing prices to an existing PO linked to a sales order our client gets the following errors after clicking save button:
"No update of sales order 16668 from purchase order
(error 8J 290)"
and then
"System error (error in method PO_POST)". 
Why is this happening? Kindly Rush me any answers, oss notes, etc.
Our client is using SAP-AFS ECC 6.0 version.
thanks
Maruthi Ram
Edited by: MARUTHI RAM on Oct 31, 2008 6:56 AM

Answer 1

Hi,
As per your thread it seems that PR has been generated automatically while creation of Sales Order and you have converted it to PO. (Same as Third-Party Sales Process). If yes then read following carefully.
If a PO has not yet been created, to confirm the quantity change in the requisition, change the sales order with transaction code VA02. Select the item and choose Schedule lines for item. Double-click the schedule line with the confirmed quantity. Choose the Procurement tab, choose Edit and check if the quantity for the purchase requisition has also been updated.
If a PO has already been created, to confirm the PO change, change the sales order with transaction code VA02. Choose Document flow. Select the purchase order and choose Display document.
Result: - The sales order quantity has been changed. If a PO existed, you have changed the PO quantity. Otherwise, you have changed the requisition quantity.
In short, first change the Sales Order quantity and then change the PO Quantity.