As we have multiple departments using foreign suppliers (but not all our departments do), it makes sense to include the forex diffs as a COS. However it's unfair for all depts to be supjected to this (sometimes) hefty cost when they don't use foreign suppliers.
It would be really good to have depts attached to the postings or the suppliers so that the forex posts to that dept and not dept 0 all the time. At the moment we have to dissect our forex diffs being posted and reallocate them to a different dept.