1. Create Test Vault and Initial Sale
Enter non-sensitive test contact data. NMI hosts the secure card and wallet fields; raw payment data is not sent to this preview.
NMI Customer Vault & OTO Validation
Dedicated Test Mode preview — not a customer-facing checkout.
Test-only boundary: this preview uses the merchant account’s NMI Test Mode. Use NMI test payment data only. No live card payment, Meta conversion event, or Newsbreak conversion event is sent from this page.
2. Test a Single Vault-Backed OTO
The controls below appear only after a successful Customer Vault record and initial test sale. Each button is protected by a server-side one-sale claim. Subscription OTOs are deliberately excluded from this one-time vault test.
Preparing the secure Test Mode payment fields.