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Diagnosis / Field notes

AI-Built App Stuck? 12 Production Blockers to Check Before Starting Over

By FinishMyBuild · Published · Updated · 4 min read

An AI-built app that looks finished but cannot launch usually needs a production diagnosis before another round of prompting. Check the actual user journey on the published URL, then isolate configuration, data, and integration failures. A working preview is evidence that part of the product works; it is not proof that authentication, payments, or permissions are ready.

Key takeaways

  • Reproduce the failure on the production URL with a fresh browser session.
  • Separate configuration mistakes from missing behavior and architectural limits.
  • Record expected behavior, actual behavior, and evidence for each blocker.
  • Repair useful code when the problem is local; consider a rebuild when core requirements cannot be supported.

Twelve blockers to inspect

  1. Domain and HTTPS. Confirm that the intended hostname resolves, the certificate is valid, and every required route loads directly. A page reached through navigation can still fail on a fresh request.
  2. Build and runtime. Read deployment logs and browser errors. Compare the production build with the development server; missing dependencies or server-only code can surface only after deployment.
  3. Environment variables. Check required variable names in the hosting project. Browser bundles must never contain private API keys or database service credentials.
  4. Authentication redirects. Test signup, login, password reset, and email confirmation on the production domain. Supabase requires the site URL and permitted redirect URLs to match your intended flow.
  5. Session persistence. Refresh a protected page, sign out, and use a second browser. A logged-in development session can hide a broken login path.
  6. Data storage. Create a record, refresh, and reopen it from another session. A polished interface may be showing browser storage or temporary data instead of a durable database record.
  7. Authorization. Test with two ordinary accounts. Account B must not be able to read or edit account A’s private records. Supabase Row Level Security policies need explicit review alongside table grants.
  8. Form delivery. Submit a real inquiry and confirm it reaches the intended inbox or database. A success message alone does not establish delivery.
  9. Checkout configuration. Confirm that products, prices, API keys, and return URLs belong to the intended Stripe mode. Never use a secret key in browser code.
  10. Webhook handling. Inspect event delivery and verify signatures on the server. Payment success must be tied to verified payment state rather than a visit to a success page.
  11. Duplicate actions. Retry form submissions and replay relevant webhook events. Repeated requests should not create duplicate paid access, orders, or irreversible actions.
  12. Failure recovery. Check empty data, denied permissions, expired sessions, rejected payments, and unavailable services. Users need a useful recovery path when a dependency fails.

Build a blocker record

For each failure, record the URL, account type, exact steps, expected result, actual result, and a sanitized screenshot or log excerpt. Keep passwords, access tokens, personal data, and payment details out of the record. Label whether the issue prevents launch, makes launch risky, or can wait.

For example: “A new user confirms their email and lands on the preview hostname” is a reproducible redirect issue. “Login is broken” does not identify the failing step. A precise record lets you confirm a fix with the same steps.

Decide what to fix first

Fix access control and unreliable payment state before cosmetic polish. Next, repair the complete path from arrival to the product’s core action. Then improve secondary features. A useful milestone ends with a behavior someone can verify, such as “a new customer signs up on the production domain and can access only their own saved project.”

If several failures share one cause, address that cause once. A stale base URL can break login redirects, checkout returns, and email links together. Resist treating those as three independent rewrites.

When to get outside help

Bring in help when the failure crosses systems you cannot verify, when production data or paid access is involved, or when repeated prompts keep changing working features. Start with a scoped review and a written roadmap. FinishMyBuild offers a free URL fit check and a $49 repository audit; implementation is quoted in milestones after diagnosis.

Use the launch checklist to record acceptance checks, then compare keep, refactor, or rebuild if the underlying structure is the concern.

Sources