Today I have a problem with PayPal checkout in my iOS application.
After user login, I receive an error:
PayPal SDK: Request has failed with error: PAYMENT_CREATION_ERROR - There was a problem setting up this payment. Please visit the PayPal website to check your account. (422) | PayPal Debug-ID: caf4fb9d7f20c [sandbox, PayPal iOS SDK 2.12.2]
The buyer account has enough balance and I think is ok. Is there a way to find a reason for this error?
If any one still have this issue, check your buyer/seller info. I had the same issue. I was using an Indian buyer account. But it started working when I tested with a new USA buyer account and currency USD.
来源：https://stackoverflow.com/questions/32844636/payment-creation-error-in-paypal-ios-android-sdk