Online Help
Toggling Between Classic And New Authorize.net
You can toggle between the new Authorize.net interface and the classic Authorize.net
interface at any time. The toggle is in the main header, or under the
(menu) option on mobile devices.

Full feature parity is not available currently. If you need to use any feature that is
not yet available in the new interface, you can toggle to the classic interface to use
this feature. You can then go back to the new interface to take advantage of the better
user experience.