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Returns from the following NVP/SOAP APIs:

• DoAuthorization
• DoDirectPayment
• DoExpressCheckoutPayment
• DoReferenceTransaction
• DoUATPExpressCheckoutPayment
• SetExpressCheckout
• UpdateAuthorization

The API request includes a missing, incorrect, or invalid postal code.

The payment process is halted, preventing the customer from finalizing their purchase. This can lead to a poor customer experience and potentially lost sales if the issue is not resolved promptly.

• Verify the postal code in the API request. If the postal code comes from the customer, surface the error to the customer to provide the correct postal code.
• The postal code field (ZIP code in the US) is PAYMENTREQUEST_n_SHIPTOZIP.
• Retry the API request with the correct postal code.
• Implement address validation on the merchant website before submitting the request to PayPal.

The NVP/SOAP API integration method is deprecated. You can find more information about our latest integrations from the following resources:

• REST APIs
• PayPal Checkout
• PayPal Developer homepage

• Express checkout token
• NVP/SOAP integration
• NVP/SOAP error codes