I have an issue where i tried to figure it and search in the forum as well, since I couldn't get anything relevant (Q&A), would like to take in this forum. Appreciate if some light been thrown .
When I open the sales order in the change mode, I have noticed that the header condition (HB00 in my case its ZB00) appearing twice , the one has the value populated and the other on is 0,00 (not impacting the Value in the order).
Condition class : A
Calculation type :B
Condition category: NIL
Manual entries as the priority
Both Header and Item conditions are checked