Strange behavior at approval procedures

Question

Hi there,
we have got approval procedures for sales orders with more than 10% discount. it normally works fine. But i figure out this problem :
You make a sales order without discount and save it like a normal order. Now you save your order, you recall and change the zero discount to 10%. In this case i hopped, the system makes a approval procedure, but it doesn't.
You can save the order with no approval.
The problem is, that invoices are generated by system without checking discount.
any ideas ?
regards

Answer 1

sry i think i described a little bit confuse. there should not be an approval of automatically generated invoices,
but there have to be an approval of resaved orders or invoices. like in the example :
you save a order without -> no check approval
you reopen it, put discount -> check
any idea, i think a query could not solve my problem.