On Net value: Discount Condition Type

Question

Hi,
I would like to know whether the below requirement can be fulfilled with the standard SD configuration.
As far as I know all discount condition types calculates on Gross value. But I have a discount condition type (lets say 123 = Special Discount) which should calculate based on Net value. I can create a step after Netvalue but the problem I see is, how the system calculates Output tax
eg.
10 PR00
20 ABC  (Customer discount)
30 XYZ  (Material discount)
40 Discount Sum
50 Net Value
60 123 (Special Discount)
70 MWST (output tax)
So if I place discount type 123 after Net value, I think it will calculate on net value, but the problem might come with MWST as it cant calculates on Netvalue but on 123. Am I right?  I knew it can be done with the ABAPer help. But I would like to know whether it can be done with standard (alrady predefined) SAP configuration. (by assigning any routine or some settings in Pricing procedure determination in V/08 ???)
Thank you.

Answer 1

Hi santosh
Sub total will the PR00 - Discount sum
Net price will be Sub total - Special discount
how do I mention that sub total will be PR00 - Discount. I configure like this
10 PR00
20 ABC (Customer discount)
30 XYZ (Material discount)
40 Discount Sum                      from20    to39
50 Sub total                             
60 123 (Special Discount)
70 Net price
80 MWST (output tax)
90 Total
when I indicate from 20 to 39 besides Discount Sum, system will sum the discounts between step 20 to 39. How do I write at sub total like this, so that system will deduct the discount sum from PR00. Similary how do I write Sub total - Special discount.
Could you please explain bit more detail.
Thank you.