Exclusion

Hallo SAP Gurus,

I am trying by myself a scenario in which i want to operate a discount (Sales Promotion) only at the end of the year; and more once this discount has been done on the Net value there is no way to allow another discount.

Indeed what i did as some Gurus told me was to define the period in which it should done. I am right with that. Now are my questions: where should i exclude the other discount? i supposed it is possible in the condition record but where? should i enter all the other existing discounts in VK11 and hit on this exclusion button?

Thanks in advance