I finished my PayPal REST API integration yesterday for executing simple payments through my website. My script does the following things:
- gets a bearer token
- creates a payment (allowing paypal as the only payment method)
- sends to user to PayPal for authorisation
- executes the payment
This was all working perfectly in the Sandbox yesterday.
Today I tried it (still in the Sandbox) and the execute command is returning an "INTERNAL_SERVICE_ERROR" message. The debug_id from my most recent attempt was 93a4116223d6e.
What is particularly strange is that the payment has been processed correctly. When I log in to the sandbox accounts for the buyer and seller the transaction shows up there as usual.
Any idea why I am suddenly getting these error messages?
I have also a problem with the Sandbox environment.
Payments with an US account returns an INTERNAL SERVICE ERROR, but with other EU accounts the payments are completed.
Using PayPal as payment method.
It seems to have stopped doing it now. I am putting this one down to an error at PayPal's end. It only seemed to last for a day or two.
来源：https://stackoverflow.com/questions/38804016/paypal-rest-sandbox-api-giving-internal-service-error