When you purchase the AuthPayX (First Data) Client, you will be emailed instructions on how to download, activate and get ONLINE so that you may begin processing credit card transactions. Clicking on the links below show you how to execute these instructions.

Click here to view how to download the AuthPayX (First Data) Client.

Click here to view how to activate the Serial Number provided by your Customer Support Contact.

Click here to view how to set the AuthPayX (First Data) Client's Preferences to get ONLINE to start processing credit card transactions.