Use Authorize.Net payment processor

1. Open www.authorize.net.
2. On tab Developers, click Integration » Sign Up for a Test Account.
3. Fill out the form and save the API Login ID and the Transaction Key that are provided by Authorize.Net.
4. On Create a payment method page, select the credit card(s) that you are going to accept.
5. Select Test Mode radio button.
6. Under Test Mode section, in URL input field, enter https://secure.authorize.net/gateway/transact.dll.
   If you are developer with a developer’s account and only want to test the API communications, enter https://test.authorize.net/gateway/transact.dll.
7. In Login Id, enter the API Login ID, provided by Authorize.Net.
8. In Transaction Key, enter the Transaction Key, provided by Authorize.Net.
9. In Timeout, enter 30000.
10. In Payment type, select one of the following:
    
    • Sale
      Directly puts the funds in the merchant account.
    • Authorize
      Authorizes the credit card, but does not submit the payment for settlement until it is done manually. The authorization expires in 30 days.
      You can submit authorization only transactions, if you want to verify the availability of funds on the customer’s credit card before finalizing the transaction. This transaction type can also be submitted in the event that you do not currently have an item in stock or you want to review orders before shipping goods.
    • Authorize & Capture
      The amount is sent for authorization and, if approved, is automatically submitted for settlement.
11. In API Version, enter 3.1
12. Go back to Create payment methods » Step 7.

After you finished setting up Authorize.Net and your ecommerce website, you can place orders and then see the report from those test orders by logging to https://test.authorize.net and clicking the Reports tab. There you can see all the test transactions.