How to check if my integration supports alphanumeric string references?

Adyen’s references are 16-character strings associated with a transaction/request. Although they are defined as strings, historically only numeric characters have been used for references generated by the Adyen platform. To support the growth in the volume of payments we are processing, references will consist of alphanumeric characters moving forward (i.e. 0-9, A-Z, a-z).

In order to ensure that your integration with Adyen is not impacted, we recommend that you perform a system test executing the following operations as applicable to Adyen's Test environment since May 15th 2019:

1. Classic Ecommerce:

2. Checkout:

 3. Submit and process 3D Secure payments:

4. Point of Sale (POS):

5. MarketPay:

6. Recurring Payments:

7. Third-party payouts:

8. Account Updater:

9. Payment Modifications:

10. Receive and manage Disputes:

11. Notifications (webhooks):

12. Process financial Reports:

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