Customer Discounts (Customer / Sales/Discount Type) will act upon the total CO header amount (e.g.: 10% of 1200 USD whole amount) 

But the calculation is worked out in such a way that all CO lines will adjusted for the discount percentage and added up back together. But the total net amount have no affect. It is same as applying the percentage for the whole order amount.

Hi RigsIrosh, 

Thank you for your reply, but I don’t completely understand what you have written in your reply.  Here is a sample scenario that we are trying to achieve by applying a discount amount instead of a percentage:

“Would it be possible to have an ‘amount’ and ‘a percentage’, very often the reason for having discount at header level is that the % is difficult to achieve!

For example we take an order for Euro 282,885. But we have negotiated with the customer to apply a discount amount of 13,610 exactly. If you try and “fudge” it using a percentage 282,885 * 0.48111423 = 13609.9999, which is not exactly correct and some customers can be particular about our documentation matching theirs exactly(for statutory and taxation purposes). Is it possible to have the discount amount subtracted somehow from the total order amount?

@SVGJOHNSULL I don’t think that’s possible in IFS9 

@SVGJOHNSULL indeed discount by amounts at CO Header level is not possible. 

If you’re selling to customer who is a frequent buyer, you could think about the Rebate Mgmt functionality where you can setup different rebate agreements based on various criteria.

Otherwise, amount offset is available in both Price Lists and Customer Agreements → but of course these would apply the offset at CO Line level.