Why can’t I create MCF orders for Canada?

I have all of my inventory in USA, and yes, I’m sure this is contributing to the issue. But I am set up for sell globally in USA, Mexico, Canada, and when I go to my Canada seller central dropdown, it shows my inventory levels of USA.

I tried to create an MCF for a Canadian customer but it won’t let me. Is there a way I can get this enabled so that I CAN send to Canadian customers?