# FAQ

# I can't find transaction ID provided by buyer

Transaction ID for buyers and sellers are different. Even though, they correspond to the same transaction. Integration stores the seller's transaction ID in the commercetools.

This document (opens new window) explains why it is like that and how we can exchange the buyer's transaction ID for the seller's one.

# Can I run checks just before payment authorization?

Yes, you can use the beforePay props on both PaymentPaypalProvider.vue and PaymentPaypalExpressProvider.vue component. If the hook returns false, the payment won't be authorized, and component will display an error.

If you want to customize the error, use the payment-refused-by-beforePay named slot.