Connecting TSYS (Formerly Cayan) To Your TherapyAppointment Account, Enabling Credit Card Processing

Have you signed up with Global Payment (Formerly Cayan/TSYS) for integrated credit card processing? If so, you will need to connect your Global Payment information to your TherapyAppointment account before that functionality will be present.

What you need from Global Payment is your "MerchantWare Credentials" (not your Merchant ID), which consists of three pieces of information: Name, Site ID, and Key.

If you do NOT have that information from Global Payment, you will need to contact them directly to obtain your credentials. They can be reached at 1-800-498-0823. 

If you DO have that information, log into your TherapyAppointment account and navigate to your " Practice Settings" either via the link in the menu on the left-hand side of the screen

Then, click the " Billing & Insurance" tab and look for the "Payment Processing" section on the right-hand portion of the screen. Once there, click the "Configure" link and then the button on the following screen.

For security reasons, you will be prompted to re-enter your password, and then press the button.

On the next screen, you will be able to input your MerchantWare Credentials and make sure to input them EXACTLY as they are sent to you. 


  • Editing the "Name" portion, mistyping any of the characters, or including spaces before/after that information will inhibit this function from working. 
  • We recommend copying and pasting the Site ID, Key, and Name into the system to avoid mistyping any of the credentials.