Checkout 2.0 Embedded Demo

Checkout settingsNeeds setup

Checkout settings

Proof setup only. Product settings should be Portal-authenticated and merchant-scoped.

Secure

not configured

Proof setup order1. Create the settings token in Vercel. 2. Use the same token here to save runtime keys. 3. Enter NMI keys and a generated signing secret. 4. Check the readiness row turns green. Product Checkout should replace this with Portal-authenticated settings.

Settings tokenAdmin password for this form. It must match Vercel env `CHECKOUT2_CONFIG_ADMIN_TOKEN`.App keyStable source-app identifier, for example `checkout-two-demo` or `events-staging`.Merchant IDPortal/Edge merchant identifier used for the payment session.Merchant display nameCustomer-facing merchant name shown in Checkout.NMI tokenization keyPublic/tokenization key used by the NMI Payment Component mount.NMI security keyPrivate NMI transaction key. Server-side only, never exposed to the browser.Processor IDOptional. Use only when the NMI account requires a specific processor.NMI payment URLUsually `https://secure.nmi.com/api/transact.php`.Result signing secretOptional. Leave blank to generate one on first save, or to keep the saved one later.Signing key IDHuman-readable ID for the active signing secret, for example `checkout-2-demo-2026-08`.

Source order

Build the sale, then hand Checkout 2.0 a locked payment context.

Line itemDescriptionUnit amount

NameEmailBilling postcode

Checkout 2.0 boundary

Create the source order to mount the embedded payment boundary here.

Authoritative result

The source order changes only after Checkout returns the result.

awaiting payment

Source order status: draft
Source order ID: order_initial
checkoutSessionId: not created
paymentAttemptId: not created
Provider transaction: not approved
Callback/result received: pending

Support trace

source order -> checkout session -> payment attempt -> provider transaction

source orderorder_initial

Draft basket £0.00

checkout sessionnot created

Waiting for session

payment attemptnot created

Waiting for submission

provider transactionnot approved

Created only after approved gateway result

Portal card turnoverpending

Recorded only for approved payment

Portal card turnoverNo approved turnover yet