> Shopify with PayZen The Shopify CMS is not compatible with PayZen. Shopify is compatible with our Lyra brand. Contact your sales representative for more information. Updated 22 April 2026 14:20 Related articles > Understanding a refusal Related to the Authorization Request > Code 57 - Transaction not allowed for this cardholder Registering a card using the data collection form > Code 207 - Refusal of the authentication by the issuer (Transaction not allowed for this cardholder)”: Is authentication systematic in the customer journey?