サーバ移設に伴いRDSライセンス（ユーザCAL）を移設したいがライセンス契約のデータが無効というエラーとなる

Question

サーバ移設に伴いRDSライセンス（ユーザCAL）を移設したいがライセンス契約のデータが無効というエラーとなる

中野雄太 0

2020年にMicrosoft Open Licenseで、Win2019のリモートデスクトップ（RDS）のユーザCALライセンスを購入し、Win2016の仮想サーバにライセンスを適用していました。

この度、サーバ移設があり、当時と同じくWin2016の仮想サーバをAzureに構築し、上記のRDSライセンスを適用しようとしたところ、「Microsoftに提供されたライセンス契約のデータが無効です。入力した情報をすべて確認して、必要な訂正を行ってから要求を再送信してください。問題が解決されない場合は、他の接続方法を試してください」と表示されます。

入力したライセンス情報は正しいはずなのですが、どうすれば適用できるでしょうか？

「ライセンスの管理」からライセンス移行、「ライセンスのインストール」からの新規登録、両方試してみたのですが、結果は変わりませんでした。

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Answer 1

Welcome to the Microsoft Q&A Platform!

Thank you for asking your question. I would like to share with you some information that may help you migrate your existing Remote Desktop Services (RDS) User CALs and can troubleshoot the error you are encountering.

The Possible Causes

Agreement Number Issues

The agreement number is critical for CAL installation. If the number is incorrect, expired, or not recognized by Microsoft, the license cannot be applied. Many customers are unsure of their agreement number or use an outdated one. You must use the exact 7–8 digit agreement number from your Microsoft Open License purchase. You can check through:

Agreement number
License version (2019 RDS User CAL)
Licensing program = Open (not Open Value)
License Server Activation

Ensure the Remote Desktop Licensing Service is started and the license server is activated with Microsoft Clearinghouse before installing CALs. Make sure the destination license server is activated:

Open Remote Desktop Licensing Manager.
Right-click the destination server → Manage Licenses.
Select Migrate RDS CALs from another license server to this license server.

Product Version Compatibility

When installing RDS CALs, select the correct product version (Win2019 CALs can be used for Win2016 session hosts, but the license server must be properly configured)

Migration Steps

If migrating licenses, use "Manage Licenses" and provide the source license server name/IP, agreement number, product version, license type, and quantity. If this fails, a license server database rebuild may be needed

Recommended Steps

License Server Database Rebuild

If the error persists, rebuild the license server database:

Deactivate license server
Uninstall RD Licensing → Reboot
Rename folder:

Rename-Item C:\Windows\System32\LServer LServer.old

Reinstall RD Licensing
Activate the server
Reapply CALs using browser or telephone method

Windows Server 2025 / 2016 Migration Steps

Follow these steps when moving CALs to a new server (including Azure VM):

Activate the destination license server.
Open RD Licensing Manager on that server.
Right-click the server → Manage Licenses.
Select Migrate RDS CALs…
Choose the migration reason (old server retired or unavailable).
If the old server is not available, select:

Windows version and License Server ID

Choose the connection method

Automatic (recommended): Communicates directly with Microsoft Clearinghouse over TCP port 443
Web browser: Use the URL provided in the Licensing Wizard from any device that has internet access.
Telephone: Call the number shown in the wizard and provide the license details to the Clearinghouse agent.

Enter the license information (agreement number or license key).
Complete the wizard and verify:

CALs appear on the new server
CALs are removed from the old server

Tip: Keep a copy of the License Key Pack ID for future migrations.

Reference:

Migrate your Remote Desktop Services Client Access Licenses (RDS CALs) | Microsoft Learn

Track your Remote Desktop Services client access licenses (RDS CALs) | Microsoft Learn

Note: This answer has been translated using a translation tool. Please note that there may be grammatical or semantic errors. Thank you for your understanding. If there is any unclear part of the answer, please leave it in the comments and we will get back to you as soon as possible.