How do I create a Transaction key for Authorize.net
1. Login to your Authorize.net account area. 2. Click on the Settings and Profile link in the menu on the left. 3. In the Security section of the page, click the Obtain Transaction Key link. 4. Answer (or, if setting up for the first time, create) your "Secret Question". There is also an option for ‘Disable Old Transaction key’. Checking this will deactivate any previous transaction keys that you have previously created. Click the Submit button. 5. An alphanumeric transaction key will be displayed. It will look something like: sd9sf03jk8768d0djl. Copy this transaction key, and paste it into your ‘Modular Merchant System Settings’ in the appropriate field.