Obtain Transaction Key
(a) Click on "Settings" as shown in the screenshot below:
(b) Under the section "Security", click on "Obtain Transaction Key ".
(c) You will be taken to a screen as shown in the screenshot below. You will need to provide the secret answer to the secret question that you answered when you set up your account in order to obtain your transaction key.
In case, you don't see a secret question, please call Authorize.Net regarding this.
