I'm processing payment through Paypal Express Checkout.
Order is already processed in Backend & will store
Transaction Id in database. But i need to process some Orders using API.
To do that i'm using https://github.com/paypal/PayPal-PHP-SDK.
It will generate Payment Id using https://github.com/paypal/PayPal-PHP-SDK/blob/master/sample/payments/CreatePaymentUsingPayPal.php
It keep asking me for
Payment Id which start with
PAY-XXXXXXXX. So does Magento store Payment Id?