Worldpay cnpAPI Reference Guide API 9.14 v2.9

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The Worldpay cnpAPI Reference Guide is a comprehensive reference for the Worldpay eComm cnpAPI 9.x schema version, and includes information on transaction formats used for card-not-present processing with Worldpay. The cnpAPI reference guide also includes feature overviews, information for testing and certification, XML examples, and a complete data dictionary. This document is intended for technical personnel who will be setting up and maintaining payment processing using the cnpAPI format. A PDF download of this guide is available at the bottom of the page.