One-Click Checkout {#sa-one-click-checkout}
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With *one-click checkout* , customers can buy products with a single click. `Secure Acceptance` is integrated to `Cybersource` tokenization, so returning customers are not required to enter their payment details. Before a customer can use one-click checkout, they must create a payment token during the first transaction on the merchant website. See [Payment Token Transactions](/content/cybsdeveloper2021/amer/en/docs/cybs/en-us/sa/developer/all/sa-hosted/secure-acceptance/sa-payment-txns/sa-payment-token-txns.md ""). The payment token is an identifier for the payment details; therefore, no further purchases require that you enter any information. When the payment token is included in a payment request, it retrieves the card, billing, and shipping information related to the original payment request from the payment repository.  
To use one-click checkout, you must include the one-click checkout endpoint to process the transaction. See [Endpoints and Transaction Types](/content/cybsdeveloper2021/amer/en/docs/cybs/en-us/sa/developer/all/sa-hosted/secure-acceptance/sa-payment-txns/sa-endpoints-txn-types.md "").