Instructions for transnational using gravityforms
Access the Gravity Forms Authorize.net Plugin via Wordpress Admin Panel
Click 'Edit' next to Plugin Files on the right hand side. Navigate to this file: gravityformsauthorizenet/api/lib/AuthorizeNetAIM.php
If you prefer, and have access, you can also accomplish this via FTP.
Make the following changes:
Change: const LIVE_URL = 'https://secure.authorize.net/gateway/transact.dll';
TO: const LIVE_URL = 'https://secure.nmi.com/gateway/transact.dll';
Change: const SANDBOX_URL = 'https://test.authorize.net/gateway/transact.dll';
TO: const SANDBOX_URL = 'https://secure.nmi.com/gateway/transact.dll';
Forms -> Authorize.net
To get started, please configure your Authorize.Net Settings.
API Login ID = enter your gateway username
Transaction Key = enter your gateway password
Do NOT check Test. Do NOT check ARB is setup in my Authorize.Net account.