Location Preferences Setup for TSYS Transaction Central
If the location has been issued a Merchant ID and/or a Reg Key that is different from the IDs for the practice, you must enter the location codes for electronic payment processing. These codes become the default codes for the location.
These location-level settings override the Practice Preferences > Payment Processing settings. You can override these defaults in NextGen® Enterprise PM on the User Preferences window on the Payment tab.
If your organization uses a unique Merchant ID for each location, then you must complete this procedure.