- Sign into NeedleNine.
- From the left navigation screen, select Settings.
- Click on the Accounting tab.
- Under Authorize.net, add your API Login ID and Transaction Key. NeedleNine uses Authorize.net as the payment gateway. You will be required to sign up for their service in order for NeedleNine to automatically process payments.
- Click Save.
Setting up a Payment Gateway
Updated on June 14, 2022
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