Hi Zopi!
Ah ha! Yes I think you’re onto something there. We don’t have multiple shipping locations however we did have another problem with the shipping settings. I had set US and Canada rates which initially worked, but although creating new products would solve this problem and show them in stock we quickly found nothing could be shipped anywhere!
I’ve obviously done something wrong in the shipping charges here but I can’t initially see what. I’ve deleted it all and started again with just US shipping and it’s working.
I think something had gone wrong with the shipping settings which was preventing Shopify from seeing any stock available.
I’ll have a read through the shipping settings again and try setting a Canada rate again.
If anyone else is having this problem, look at your shipping rates and try deleting them and starting again.
Many thanks for your help.
Trevor.