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Adyen gateway -- Error: "transaction declined.134 - Billing address problem (Country XK invalid)"

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Zuora Staff

Adyen gateway -- Error: "transaction declined.134 - Billing address problem (Country XK invalid)"

Problem: We have a customer in Kosovo trying to checkout, however when the payment is sent to Adyen gateway it is returning the error

Transaction declined.134 - Billing address problem (Country XK invalid)

Solution: Kosovo is currently not recognized as an official country. As per the latest update from Adyen gateway, The countryCode "ZZ" should be used for Kosovo, then Adyen will map this to 'Unknown' country."


For any further clarification, you can reach out to the Adyen Support

1 REPLY 1
Zuora Staff

Re: Adyen gateway -- Error: "transaction declined.134 - Billing address problem (Country XK inv

Hi All, 

Our engineering team has deployed a fix to both sandbox and production environments. The country code for Kosovo is now passed as "ZZ" during the payment transactions only for the Adyen gateway.