I have a problem: I have an helmet with the following choice:
size M and size S, colour red and colour black
I have 2 medium red and 2 medium black, no size S. Total 4 helmets.
If a customer want to buy 4 medium black or 4 medium red or 4 Small in the shopping cart there is no message that they are out of stock, but if he want to buy 5 medium black, it says 0 quantity available.
why? is it normal for this mod?