To set up your Authorize.net account to work with your WebStarts shopping cart system and begin processing credit cards, use the following steps:
Step 1: When your merchant account is set up, they will provide you with Authorize.net login information. Use that information to log in at www.authorize.net.
Step 2: Near the bottom of the page, on the left, click the “Settings” under the account heading.
Step 3: Scroll down and click on the “API Login ID and Transaction Key” link.
Step 4: Copy your API Login ID from that page by highlighting, right clicking, then clicking “copy”.
Step 5: In your shopping cart account, click the “Settings” tab, then click “Ecommerce”.
Step 6: Choose “authorize.net from the drop down and paste your information into the “API Login ID” field.
Step 7: Back in your authorize.net account, create a new transaction key by entering the answer to your secret question, then click “submit”.
Step 8: Copy the new transaction key, then paste it in your shopping cart settings just below the API Login ID. Click “save” at the bottom of the page.
Note: Make sure your authorize.net account is NOT IN TEST MODE. Check this by going back to your authorize.net account settings and find the “Test Mode” link.
Step 9: When you are ready to go live, click the “settings” tab in your shopping cart and make the shopping cart account live.