NAA Support On LTSC Unknown

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NAA Support on LTSC: Unanswered Questions

As the world of Microsoft Office and its add-ins continues to evolve, one question remains unanswered: when will Native Application Authentication (NAA) be supported on Long-Term Servicing Channel (LTSC) versions of Office? In this article, we will delve into the current state of NAA support on different channels, the challenges faced by customers using LTSC, and the recommended approach after June 2025, when the Exchange Online token extension period ends.

NAA Support on Different Channels

According to the NAA FAQ, NAA has been generally available (GA) on the following channels:

  • Current Channel: NAA is GA as of October 2024.
  • Monthly Enterprise Channel: NAA is GA as of November 2024.
  • Semi-Annual Channel: NAA is GA as of January 2025, with a specific build number (16.0.17928.20392).
  • Semi-Annual Extended Channel: NAA will be GA as of June 2025.

However, the FAQ does not provide information on when NAA will be supported on LTSC versions of Office. This lack of clarity has left customers wondering if NAA is already supported on LTSC or when it will be supported.

Challenges Faced by Customers Using LTSC

We have a customer who is unable to authenticate using NAA on LTSC 2021, receiving the following error:

ServerError: invalid_request: Error(s): 9002326 - Timestamp: 2025-04-18 15:47:04Z - Description: AADSTS9002326: Cross-origin token redemption is permitted only for the ‘Single-Page Application’ client-type. Request origin: ‘https://officejs.hoxhunt.com’. Trace ID: 5eca83fc-ae49-4220-a837-2d9429ee0300 Correlation ID: 01964994-eb8f-75ba-93ff-8423e8355d22 Timestamp: 2025-04-18 15:47:04Z - Correlation ID: 01964994-eb8f-75ba-93ff-8423e8355d22 - Trace ID: 5eca83fc-ae49-4220-a837-2d9429ee0300

This error suggests that the issue may be related to the version of Outlook being used, which is LTSC 2021. However, without official confirmation from Microsoft, it is difficult to determine the root cause of the issue.

Questions and Concerns

The lack of clarity on NAA support on LTSC has raised several questions and concerns:

  • Is NAA supported on LTSC versions of Office?
  • If not, when will it have support (if at all)?
  • What is the recommended approach after June 2025, when the Exchange Online token extension period ends?

Recommended Approach

In the absence of official guidance from Microsoft, we recommend the following approach:

  • Continue to use legacy authentication methods: Until NAA is supported on LTSC, customers should continue to use legacy authentication methods, such as username and password or client certificates.
  • Monitor Microsoft's: Keep an eye on Microsoft's documentation and announcements for updates on NAA support on LTSC.
  • Plan for a transition: As the Exchange Online token extension period ends in June 2025, customers should start planning for a transition to NAA or other supported authentication methods.

Conclusion

The lack of clarity on NAA support on LTSC has left customers wondering when they can expect support for this authentication method. While Microsoft has provided guidance on NAA support on different channels, the company has not addressed the specific question of when NAA will be supported on LTSC. In the meantime, customers should continue to use legacy authentication methods and monitor Microsoft's documentation for updates.
NAA Support on LTSC: Frequently Asked Questions

As the world of Microsoft Office and its add-ins continues to evolve, one question remains unanswered: when will Native Application Authentication (NAA) be supported on Long-Term Servicing Channel (LTSC) versions of Office? In this article, we will provide answers to some of the most frequently asked questions about NAA support on LTSC.

Q: Is NAA supported on LTSC versions of Office?

A: No, NAA is not currently supported on LTSC versions of Office. While Microsoft has provided guidance on NAA support on different channels, the company has not addressed the specific question of when NAA will be supported on LTSC.

Q: When will NAA be supported on LTSC?

A: Unknown, Microsoft has not provided a specific date or timeline for when NAA will be supported on LTSC. However, customers can continue to monitor Microsoft's documentation and announcements for updates on NAA support on LTSC.

Q: What is the recommended approach for customers using LTSC?

A: Continue to use legacy authentication methods, such as username and password or client certificates, until NAA is supported on LTSC. Additionally, customers should monitor Microsoft's documentation and announcements for updates on NAA support on LTSC and plan for a transition to NAA or other supported authentication methods.

Q: Will NAA be supported on LTSC 2021?

A: No, NAA is not currently supported on LTSC 2021. The error message received by customers using LTSC 2021 suggests that the issue may be related to the version of Outlook being used, which is LTSC 2021.

Q: What is the impact of the Exchange Online token extension period ending in June 2025?

A: Customers should start planning for a transition to NAA or other supported authentication methods. The Exchange Online token extension period ending in June 2025 means that customers will no longer be able to use legacy authentication methods, and will need to transition to a supported authentication method, such as NAA.

Q: Can I use NAA on LTSC if I have a custom solution?

A: It's possible, but not recommended. While it may be possible to use NAA on LTSC with a custom solution, it is not recommended, as it may not be supported by Microsoft and could lead to issues with authentication and authorization.

Q: What should I do if I'm experiencing issues with NAA on LTSC?

A: Contact Microsoft support, if you're experiencing issues with NAA on LTSC, contact Microsoft support for assistance. They can help you troubleshoot the issue and provide guidance on how to resolve it.

Q: Will NAA be supported on future versions of LTSC?

A: Unknown, Microsoft has not provided a specific answer to this question. However, customers can continue to monitor Microsoft's documentation and announcements for updates on NAA support on LTSC.

Conclusion

The lack of clarity on NAA support on LTSC has left customers wondering when they can expect support for this authentication method. While Microsoft has provided guidance on NAA support on different channels, the company has not addressed the specific question of when NAA will be supported on LTSC. In the meantime, customers should continue to use legacy authentication methods and monitor Microsoft's documentation for updates.