Important: Integration with
checkout.jsV3.5 is Deprecated. For the latest integration information, see the PayPal Express Checkout Integration Guide.
To integrate the Express Checkout with In-Context flow, you must:
Get an access token.
In exchange for these credentials, the PayPal authorization server issues access tokens called bearer tokens that you use for authorization when you make REST API requests. A bearer token enables you to complete actions on behalf of, and with the approval of, the resource owner.
To determine whether your Express Checkout integration is a good candidate for the In-Context Checkout experience, read the Eligibility review.