Attach a receipt email
Checkout
Attach a receipt email
Records the buyer’s email on a pending order so the receipt and any delivery can be sent.
Order checkouts only — an invoice’s recipient is set by the merchant who issued it. The address is never echoed back; the checkout payload only reports hasCustomerEmail.
Unauthenticated: possession of the checkout id is the credential, so send no API key. The id is unguessable and every payload is redacted for a buyer audience.
PUT
Attach a receipt email