Why are customers facing checkout issues due to shipping restrictions?

Payments + Shipping & Fulfilment
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Topic summary

Checkout is blocking most UK orders with the error “Shipping not available,” only allowing local postcodes tied to the store’s local delivery. The problem appeared last month, briefly resolved for ~2 weeks, and has recurred, impacting sales.

Evidence provided includes screenshots of England shipping rates, a random address test, and general shipping rates; these images are central to understanding current settings.

Suggested checks:

  • Review shipping profiles to ensure no products are excluded and all items belong to the correct profile. “Shipping profiles” group products and define zones/rates that determine whether rates appear at checkout.
  • Re-verify all shipping settings for recent changes or misconfigurations.
  • Use a shared troubleshooting checklist for Shopify checkout rates and consult Shopify’s shipping profiles documentation.
  • Contact Shopify Support since functionality previously worked and then regressed.

Current status: No confirmed root cause or fix in-thread. The issue remains open pending a systematic settings audit and/or Shopify Support investigation.

Summarized with AI on January 2. AI used: gpt-5.
2

I would first suggest you check the shipping profiles in case you’ve excluded products

Doesn’t mean this is the problem but a good sanity check to rule out first.
https://help.shopify.com/en/manual/shipping/setting-up-and-managing-your-shipping/shipping-profiles/setting-up-shipping-profiles#before-using-shipping-profiles