Generate an access token to initialize the Checkout SDK to provide PayPal One-Click
This endpoint allows you to obtain an access token that you can use to initialize Checkout SDK. This access token is only required for the following features using Checkout SDK: You do not need an access token if using Checkout SDK to service other payment methods or PayPal without PayPal One-Click. A single access token can be used to service the experience to one user and has a lifespan of 15 minutes. You need to provide theDocumentation Index
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UserId of the Natural User or Legal User who will use the Checkout session to make the payment.
clientToken value when initializing Checkout SDK.