20 known error codes for this model

AMOUNT_MISMATCH Easy Fix

Amount fields are inconsistent across request objects.

AUTHENTICATION_FAILURE Easy Fix

Client credentials are invalid or expired.

CURRENCY_NOT_SUPPORTED Easy Fix

Currency is unsupported for this account/operation.

DUPLICATE_TRANSACTION Moderate

Duplicate transaction detected for same payment intent.

INSTRUMENT_DECLINED Moderate

Payment instrument was declined by issuer or risk checks.

INTERNAL_SERVER_ERROR Call a Pro

PayPal encountered an unexpected internal server failure.

INVALID_RESOURCE_ID Easy Fix

Provided resource ID does not match PayPal resource format.

NOT_AUTHORIZED Easy Fix

Request is not authorized in current app/account context.

ORDER_ALREADY_AUTHORIZED Moderate

Order is already authorized and duplicate authorization is invalid.

ORDER_ALREADY_CAPTURED Moderate

Order has already been captured and cannot be captured again.

PAYEE_ACCOUNT_RESTRICTED Easy Fix

Payee account restrictions prevent completing this payment.

PAYER_ACTION_REQUIRED Moderate

Payer must complete additional approval/authentication.

PAYMENT_DENIED Moderate

Payment denied by compliance/risk/business policy checks.

PERMISSION_DENIED Easy Fix

Caller lacks permission for requested account/resource action.

RATE_LIMIT_REACHED Moderate

PayPal API rate limits were exceeded.

RESOURCE_NOT_FOUND Easy Fix

Requested order/payment resource does not exist.

SERVICE_UNAVAILABLE Call a Pro

PayPal service temporarily unavailable for this route.

TRANSACTION_REFUSED Moderate

PayPal refused transaction under policy or risk controls.

UNPROCESSABLE_ENTITY Easy Fix

Request is syntactically valid but semantically invalid for operation.

VALIDATION_ERROR Easy Fix

One or more request fields failed PayPal validation.