User Guides and Manuals

TransUnion Net Access Resources

Use the resources below to answer your questions about TransUnion Net Access (TUNA).
A video demonstrating TUNA-related tasks on the CTS Portal. Spanish
Last Updated: 08/23/2016
Follow these instructions for the SHA-2 digital certificate upgrade. Spanish
Last Updated: 06/26/2017
Get started with TransUnion Net Access. Spanish
Last Updated: 08/24/2016
Answers to frequently asked questions. Spanish
Last Updated: 10/01/2013
Use this guide if you encounter any errors. Spanish
Last Updated: 06/26/2017
Information on the digital certificate chain and key sizes. Spanish
Last Updated: 05/27/2016
Instructions for the optional step of installing and testing the TUNA digital certificate in a web browser. Spanish
Last Updated: 06/26/2017
Instructions for installing the TUNA digital certificate on different server types. Spanish
Last Updated: 08/23/2016
Instructions for replacing a system ID and downloading a new digital certificate when a system ID is nearing expiration.
Last Updated: 08/23/2016
Documentation on TUNA-related tasks done on the CTS Portal. Spanish
Last Updated: 07/06/2012
Definitions for TUNA terminology. Spanish
Last Updated: 06/26/2017
An overview of TransUnion Net Access. Spanish
Last Updated: 08/23/2016
The complete set of all TUNA documentation. Spanish
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800-813-5604