Hi,
I do not think you have issue in PO print- 1st try to understand how your PO Layout designed for your business!
You PO print show your PO number as Service Order 3500127581 and where it also shows the
Contract No- 9600000570.
May be in your case- you PO print layout designed for showing PO number(header ;level only) with other purchasing conditions with contract number details below- As is this case your Service Order from a Contract ONLY!
Regards,
Biju K