Test your integration
To complete an end-to-end test of your REST Express Checkout integration, create both merchant and buyer accounts in the PayPal sandbox environment.
Create the accounts, as follows:
|Merchant||Select the Business account type and enter an email address and password.|
|Buyer||Select the Personal account type and enter a high PayPal balance, such as
Note: If you're using Braintree credentials with PayPal, see Braintree's Testing and Go Live page to complete your integration testing.