Can you add a bit more detail? I am having this exact issue. Where did you have it set to "ship from one location"?

Ok, so I tried adding a new market consisting of just one country instead of a group of countries called Europe. In this new one country market, I do see make primary so that makes me believe you can only assign 1 country markets as primary.

I am having the same issue as @EytanG and @LasseN My business is based in Belgium and only has one location (in Belgium) yet by accident the primary market is set to UK and Europe is an active secondary market. Under primary market I don't see the op...

Does this work on a basic plan (not Shopify Plus?)