Are you looking for test card numbers?

Would you like to contact support?

Default icon


The additionalData object is a generic container that can hold extra request fields. You may require to pass these fields along with payment request data, for example, to better manage risky transactions or to initiate a payment using some local payment methods.

This functionality requires additional configuration on Adyen's end. To enable it, contact the Support Team.

For more information on possible key-value pairs in additionalData, refer to PaymentRequest.additionalData.

Secure+ fields

Field Type Required Description
mpiImplementationType String -white_check_mark- In case of Secure+, this field must be set to CUPSecurePlus.