we are using the following scnario,
1. Once the user creates the sales order, automatically system creates PO in the background.
we have created Bapi program for creation of Background PO in SD User Exit.
The following issue occurs in Prd, DS1, QS1 server, We have done Technical upgradation project, Now when we creates sales order automatically po created with error message of Material availablity date can not be after the delivery date. even sales order no also not updated in the PO.
QAS server (without technical upgrade) i refered the same input parameter and used the same and create the sales order system generates PO automatically without error message.
Does any one can through lights on this issue,
Thanks and Best Regards,