A whole catalogue of mine was invisible on Google Shopping for one reason: a missing country in the shipping profile Google actually reads. Here is how it works, and how to check yours in two minutes.
On my own store, that quietly hid my entire UK catalogue, around 1,769 products, from Google Shopping. Customers in the UK could buy fine. Google simply had nothing to show them, because the country they were in did not exist in the profile Google reads.
Shopify lets you run more than one shipping profile. Most stores end up with a General profile plus one or more custom profiles for particular products or markets. The catch is the split in who reads what. Checkout uses whichever profile a product is assigned to. Google only ever reads the General one.
My store had over 500 products sitting on a separate custom profile that gave free UK delivery. So every UK customer saw free shipping and a working checkout, and the store looked completely healthy to me. Meanwhile the General profile had no United Kingdom zone, so Google built full feeds for Australia, Canada, the United States and New Zealand, each carrying all 1,769 products, and a UK feed carrying zero. Nothing looked broken. It just was.
There is a second risk in the same place, and it is not just a missed opportunity. If the rates in your General profile are not the rates the customer actually pays at checkout, then Google is being told a shipping cost the customer never experiences. On my store the General profile was advertising different international rates than checkout charged. That is a straight misrepresentation exposure under the part of Google's policy about disclosing the full expense a customer will bear.
I fixed it by rebuilding the General profile into per-country zones whose rates match checkout for every market I sell to. Not because I got a warning, but because it is the kind of quiet contradiction this whole site exists to catch before Google does.
I added the United Kingdom zone to the General profile on 12 September 2026. Shopify created a dedicated UK data source, and by the same day Merchant Center had ingested the roughly 1,769 UK products and approved almost all of them, with no suspension and no review drama. Whether that visibility turns into UK sales is the next thing I am measuring, and I will not pretend to know yet. But the products can now be found, which they could not be the day before. That is the whole point.