Can sell item through app, but not through website link?

[janjwoodables]

Wondering, why I can sell an item on the app (iphone if it matters) that has a 0 stock level (even a negative stock level) but on the website, it's "Out of Stock" and not able to be sold? Usually this is with our custom made items.

It helps that I can sell the items on the app, but makes the website pretty much useless for selling these types of custom items.

I know I can add a dummy stock item, but that screws up my inventory calculations royally!

Thanks as always in advance