API error codes

A PayPal API operation can return multiple error and warning codes.

Error category Error codes
General errors 10002 to 10101
AddressVerify errors 10004 to 10014
Billing Agreement errors 10004 to 13200
Direct Payments errors (Website Payments Pro) 10001 to 15012
DoReferenceTransaction errors 10001 to 18014
Express Checkout errors 10001 to 19065
ManagePendingTransactionStatus errors 10014 to 11614
Mass Payments errors 10001 to 10327
Recurring Payments errors 10001 to 15004
Refund errors 10001 to 15011
500000 to 589061
TransactionSearch errors 10001 to 11002
Universal Air Travel Plan (UATP) errors 10001 to 15010
Validation errors 81000 to 99998