Shopify Checkout Extensibility upgrade broken — thank-you / order status extensions after checkout.liquid retirement.

Several products can look like “post-purchase is broken after the Shopify checkout change.” They do not share a settings panel. This page is only when the Checkout Extensibility upgrade itself fails, or thank-you / order status UI extensions never attach after checkout.liquid is retired. A working extensibility profile where only an upsell app / Additional scripts paste fails is thank-you-page-upsell-broken. Plus Ruby Scripts → Functions is shopify-scripts-to-functions-migration. A Hydrogen storefront blank on Oxygen is hydrogen-storefront-blank-or-error. An Online Store checkout white-screen / CDN / ERR_CONNECTION is checkout-blank-or-cdn-error. This page is only: Shopify Checkout Extensibility upgrade / thank-you and order status extensions broken after checkout.liquid retirement.

Six ordinary reasons the upgrade stays broken: live checkout still on a custom checkout.liquid / unpublished draft profile, thank-you UI extension not added to the live profile, order status extension missing or on a preview profile only, apps still targeting retired checkout.liquid hooks, upgrade checklist still blocked by incompatible apps, or you are debugging thank-you upsell scripts / Scripts→Functions / Hydrogen / checkout blank instead. Walk them in that order. You already pay for Shopify Checkout. You do not need another checkout SaaS to publish the extensibility profile and attach extensions.

Open Settings → Checkout and accounts (or Checkout). Confirm the store is on Checkout Extensibility — not a custom checkout.liquid that Shopify retired. Note which checkout profile is Live vs Draft. If the upgrade / migration banner still lists incompatible apps or unfinished steps, finish or remove those blockers before editing extensions.

Honest proof: screenshot the Live profile name, the upgrade status (complete vs blocked), and that checkout.liquid is no longer the customization path. If checkout.shopify.com itself is blank / CDN / ERR_CONNECTION, switch to checkout blank / CDN instead of rewriting the extensibility profile.

Open the Live checkout profile editor. Add or re-enable thank-you page and order status page UI extensions / app blocks that your post-purchase apps provide. Publish the profile (draft-only changes do not serve buyers). Remove leftover customizations that only worked on checkout.liquid or Additional scripts.

Honest proof: screenshot the Live profile with thank-you and order status extension targets listed, plus the Publish confirmation. If the profile is already extensibility and only one upsell app’s UI is missing, that is often thank-you-page-upsell-broken — finish the upgrade proofs here first, then open that playbook.

Place a real (or test-gateway) paid order. Capture the thank-you URL and the order status / order tracking URL. Confirm extensions render, console has no extension target errors, and you are not still on a preview / draft profile URL. Hard-refresh both surfaces in incognito.

Honest proof: before/after screenshots of thank-you and order status plus the Live profile publish ID. Scripts → Functions on Plus checkout stays on shopify-scripts-to-functions-migration. Hydrogen / Oxygen blank stays on hydrogen-storefront-blank-or-error.

Thank-you / order status upsell or Additional scripts not loading on an already-upgraded profile is thank-you-page-upsell-broken. Scripts deprecated → Functions is shopify-scripts-to-functions-migration. Hydrogen / Oxygen blank or deploy error is hydrogen-storefront-blank-or-error. Checkout blank / CDN / ERR_CONNECTION is checkout-blank-or-cdn-error. None of those replace finishing the Checkout Extensibility upgrade and attaching thank-you / order status extensions on the Live profile.

Finish the upgrade + Live profile + extension proofs first. Only then open the related playbook that matches the remaining symptom.

Stay DIY if you can spend one afternoon on the list above: prove checkout.liquid is retired, publish a Live extensibility profile, attach thank-you and order status UI extensions, place a paid test order, and stop confusing thank-you upsell / Scripts→Functions / Hydrogen / checkout blank with this upgrade path. That is the whole playbook. No agency required. Short answers also live on the merchant FAQ. Related pages: thank-you-page-upsell-broken, Scripts → Functions migration, Hydrogen / Oxygen blank, checkout blank / CDN.

Pay for help when the work is not the upgrade checklist — it is connecting the stack you already have so lead capture is not dying in DMs, checkout and ops exceptions land in a channel you already check, and the live store is one workflow instead of a spreadsheet plus a Slack bot you forgot. That is the Latch AI Ops install.

What $997 USD one-time buys: lead capture on the live store, ops alerts in a channel you already check, and a checkout-ready workflow. 72 hours after collaborator access, not after payment. One live Shopify store. Access plus a delivery thread. Store URL collected at checkout. Not a SaaS seat, not a checkout agency retainer, not a conversion guarantee, not a brand or theme job.

Other shops’ public ranges, not testimonials: a checkout / ops install typically runs $500–$2,500. A full ops consulting block typically runs $2,000–$5,000. $997 is the cheap end of that work, sold as a 72-hour install of three systems — not as an earnings number or conversion-lift claim.

What it does not buy: more orders, recovered revenue, a forever Checkout Extensibility SLA, a custom checkout rebuild retainer, or a case study. Latch AI Ops has not published customer proof because there are no customers yet. You are buying the install.

Checkout is on Whop. Operator is Nico. United States offer. You can revoke collaborator access after handoff. We do not take owner passwords.