First of all, you need to create an app on your PayPal developers account: https://www.paypal.com/us/webapps/mpp/express-checkout
2. To create your app check this screenshots
3. Create the app
4. Access the app that you just created
5. Test credentials. You need to write this client ID in your editor, in the sandbox API key.
6. Live credentials. You need to write this client ID in your editor, in the API key field.
Now we need to configure it from our Editor.
To do this go to your Editor and open the payment settings option to the store that you want to configure this payment method.
Make as yes the sandbox option only for testing purpose and paste the API KEY and SANDBOX API KEY.
If you need anything else from your Ordering Team, just let us know 👍
Have a Happy Ordering