HI experts,

I know that this question has been asked many times before, but after going through many threads, i still have some questions regarding these two. As to my knowledge, VAX is used when we do not use Sales Order as cost object, and VAY is the other way around.

My questions are:

- what are the effects of using cogs as cost element?

- if i am using sales order cost estimate with valuated stock, but the sales order is NOT cost object itself (account category M, valuation M), does the system automatically choose VAY instead of VAX? I have tried to find the answer to this issue, but most of the sources i found said that it will choose VAX.

i have check the requirement class, but as i see it, no requirement class used make the sales order as cost object, and the cogs account itself is not a cost element

Any help is really appreciated. Thanks