Support Services

April 2022 DL Host To ISO 8583- Merchant Notice

Dept. Process Owner: Support ServicesCreated Date: 05/04/2022
CSA: Hannah DenmanVersion #: 1.2
Approved By: Hannah DenmanLast Updated: 10/21/2022

View this email in your browser
Action Required: Please complete action by 5/2/2022 to avoid a service disruption

Dear Valued Merchant,

CSG Forte is committed to providing the highest levels of service and support to our customers. As a part of our compliance commitment, we are working alongside First Data to retire our existing Nashville DL Host gateway integration. As a result of this retirement, we will be migrating your merchants account using this platform to the First Data ISO8583 (Nashville ISO) integration.

What is changing?
CSG Forte is upgrading from the First Data Nashville DL Host integration to the Nashville ISO8583 integration. A new Terminal ID (TID) is required for the new integration to properly transmit your transactions. These credential changes will be initiated by your immediate channel provider, and you will need to send these credentials to CSG Forte to have your account migrated. Please do not make any changes or deactivate the existing TID until we provide further instructions. New TIDs should be sent to

Why is this changing?
The First Data Nashville DL Host integration is a legacy solution, we are making this change to keep in alignment with our compliance and security standards.

What action must I take?
First Data is unable to request  a new TID on your behalf, therefore we request that you reach out to your immediate channel contact to request a new VAR Sheet for ISO8583. Once you have received this VAR Sheet it is imperative that you send it to as soon as possible. To avoid any processing interruptions we request that you complete this action by close of business on MAY 2, 2022.
       CSG Forte MID(s)         First Data MID(s)          Current TID(s)
          << Test MID List >>         << Test Fiserv MID >>          << Test Current TID >>
How will the migration impact my processing?
We do not anticipate there to be any disruption to transaction processing as a result of this migration. We will work closely with you to ensure proper coordination to minimize any impact. This migration will increase the security of your transactions and be in compliance with industry rules and regulations.

If you have any questions regarding this migration or the action required on your part, please contact We appreciate your swift response to this matter and look forward to serving you through this upgraded platform.

Thank you,

CSG Forte
© 2022 CSG Forte Payments, Inc. All rights reserved.
You are receiving this notice because you provided your email address to receive notifications related to your CSG Forte account.

Our mailing address is:


2121 Providence Drive, STE 151

Fort Worth, TX 76106

Want to change how you receive these emails?
You can update your preferences or unsubscribe from this list.

Email Marketing Powered by Mailchimp

Did you find it helpful? Yes No

Send feedback
Sorry we couldn't be helpful. Help us improve this article with your feedback.