Merchant Updated April 2026
Managing Customers
Create payer contact records that persist on preview and production. This is not a card vault.
What it is
Customers are merchant-scoped contact records (name and email required). Invoices, subscriptions, and saved payment methods are separate Track C slices and are not stored on this record yet.
When to use it
Create a customer when you need a durable payer email/name that survives refresh. Do not enter card numbers on this page.
Step-by-step
- Open Customers.
- Click New customer.
- Capture name, email, billing address, and any custom metadata.
- Save — the customer ID can now be referenced by transactions, invoices, and subscriptions.
Common pitfalls
The same email on the same merchant returns an error (409). Another merchant may use that email. Demo mode still uses labeled fixtures.