Knowledgebase: Legacy Payments

How Do I Set Up My Store's Payment Module?


Important This article is aimed at our merchants on our legacy paid plans (for more information see here). This feature is not accessible on our free, End to End plan.

Setting up your store's payment module. has 2 pieces of information that are used to authenticate your website with your account.

  • API Login
  • Transaction Key

In order to get your API login and transaction key please use the following steps:

  1. Log into your account
  2. Click "ACCOUNT" on the top right.
  3. Scroll down and click API login and Transaction Key

If this is your first time clicking on this particular seciton of your Authorize Net account, you will be prompted to create a new set.

  1. Login to your Shift4Shop Online Store Manager
  2. Go to Settings >Payment
  3. Next, click on the "Select Payment" button listed within "Payment Methods"
  4. Click the +Add New button located at the top right.
  5. Choose in the Payment Method dropdown.
  6. Click Add.
  7. In the newly inserted section, enter the API Login into the API Login ID field.
  8. Click the symbol next to the 'n/a' in the Transaction Key field to type in the Transaction Key
  9. Click Save
  10. Click the "test" button to make sure the payment gateway is integrated properly. If it is, you will see a declined transaction in your account.

Important Information

Please check your account settings and be sure there is no data entered in the Default Receipt Link URL field. This field must be blank.

You will also want to be sure there is no data entered in the Default Relay Response URL field. This field must also be blank.


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