Failure scenarios

Real-world flows that should never break

See how Endia protects the customer journeys teams cannot afford to discover are broken after deployment.

Protect your critical flow How verification works

Critical journeys Endia protects

Each scenario maps a recognizable failure to browser-level checks on Vercel previews.

9 examples

62 checks

REVENUE CRITICAL

E-Commerce Checkout

A customer gets all the way to checkout and cannot complete the purchase.

Flow being protected

product search → product page → add to cart → modify cart → …

9 checksSee what Endia protects

ACCESS CRITICAL

User Authentication

A deploy works for developers but locks real users out.

Flow being protected

8 checksSee what Endia protects

REVENUE CRITICAL

Stripe Payment (Test Mode)

Billing appears healthy until the actual payment or subscription flow breaks.

Flow being protected

checkout start → test payment → success return → subscription/customer state (fixture) → …

7 checksSee what Endia protects

WORKFLOW CRITICAL

Search & Filtering

Search still loads, but users can no longer find the thing they came for.

Flow being protected

query → filters → sorting → pagination → …

7 checksSee what Endia protects

WORKFLOW CRITICAL

Multi-Step Forms

A user spends several minutes completing a form and loses progress before submitting.

Flow being protected

required validation → next/back navigation → conditional fields → step persistence → …

7 checksSee what Endia protects

DATA CRITICAL

Admin Dashboard

The dashboard loads, but the action the team actually depends on is broken.

Flow being protected

7 checksSee what Endia protects

WORKFLOW CRITICAL

Real-Time Chat

The UI says the message was sent, but the other person never receives it.

Flow being protected

connect (fixture session) → send → receive/render → delivery indicator → …

5 checksSee what Endia protects

WORKFLOW CRITICAL

Calendar & Scheduling

The appointment is booked—but for the wrong date, time, or timezone.

Flow being protected

date selection → time selection → event creation → display confirmation → …

6 checksSee what Endia protects

DATA CRITICAL

File Upload

The customer uploads a file, sees progress, and only later discovers it never processed correctly.

Flow being protected

select/drop file → upload begins → progress/status → completion → …

6 checksSee what Endia protects

Built for Next.js + Vercel first

Endia's launch focus is Next.js apps on Vercel preview deployments. Browser-level critical-flow verification can apply more broadly over time where the integration model supports it — these examples are certified against the Next.js + Vercel wedge.

Next.js

Vercel previews

GitHub PR checks

What can your app not afford to break?

Record the journey once. Endia replays it on every Vercel preview and returns SAFE TO MERGE or REGRESSION DETECTED with evidence.

Protect your critical flow