Magento Open Source 2.1.x

Magento 2.1.x Notice: Magento 2.1.18 is the final 2.1.x release. After June 2019, Magento 2.1.x will no longer receive security patches, quality fixes, or documentation updates. To maintain your site's performance, security, and PCIPayment Card Industry: Refers to debit and credit cards and their associated businesses. compliance, upgrade to the latest version of Magento. The Magento User Guide 2.1.x remains available in PDF for Open Source and Commerce.

Authorize.Net Direct Post

Authorize.Net handles all steps in the transaction process — such as payment data collection, data submission, and response to the customer — while the customer remains in your store. Authorize.Net Direct Post can be used with orders created from the AdminThe password-protected back office of your store where orders, catalog, content, and configurations are managed. as well as from the store.

Deprecation Notice: Authorize.Net has deprecated the use of MD5 Hash. When configuring, enter a Signature Key using SHA-512. These instructions include the updated step. Payment processing will not complete until you add the correct Signature Key. For details, see Authorize.Net's MD5 Hash End of Life & Signature Key Replacement and What is a Signature Key. To install the patch, see the Magento KB article Update Authorize.Net Direct Post from MD5 to SHA-512.