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MS Learn - Can't continue Exercise - Explore the Learn sandbox

Hi, I am having trouble continuing Exercise - Explore the Learn sandbox, which is on the Administrator Career Path.

At first, when I tried to login to sandbox environment with my personal account, I got this message:

Selected user account does not exist in tenant 'Microsoft Services' and cannot access the application '18fbca16-2224-45f6-85b0-f7bf2b39b3f3' in that tenant. The account needs to be added as an external user in the tenant first. Please use a different account.

Then I tried to login to Azure, Entra ID with the same personal account to try to resolve the issue. I got this:

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Then I deleted all cookies and cache for Microsoft website, and Microsoft Learn (except Copilot). I tried to access the Exercise - Explore the Learn sandbox again with the same personal account. I got this message:

AADSTS500200: User account 'email' is a personal Microsoft account. Personal Microsoft accounts are not supported for this application unless explicitly invited do an organization. Try signing out and signing back in with an organizational account.

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If I understood correctly, MS Learn should create a temporary subscription to Azure through which I would be able to access the sandbox environment and continue with the course. But for some reason that's not happening, and instead it's telling me that the tenant should send my personal account an external invitation through Entra ID. The problem is there is no tenant, no organization which should grant my personal account access through Entra ID. I just want to access the course with my personal account.

Please help.

***Personal information deleted by the moderator. Please see the Microsoft Community Frequently Asked Questions for more information on how you can protect your privacy.***


Hello, Stefan Đurić.

Thank you for contacting Microsoft Community.  

Based on your inquiry, we understand you are having issues activate the Sandbox tool in a Course module, due to an account usage issue.

To receive assistance with this inquiry, please contact the Microsoft Q&A Community Forums below:

On the other hand, we also invite you to check our FAQ support page dedicated for Sandbox issues. For this please check the "Sandbox" tab on the link below:

- Microsoft Learn frequently asked questions (FAQs) | Microsoft Learn

On the same link, you can also report your feedback on the link below. Please tick the Product or functionality box. Your will find a dedicated option for Sandbox issues:

- Troubleshooting Microsoft Learn | Microsoft Learn

An alternative option is contacting the Azure support team and check with them for any available options:


We hope this is useful to you, if there is anything else we can do for you, please do not hesitate to keep in contact with us.

If this solves your problem, please indicate “Yes” to the question and the thread will automatically be closed and locked. In case we do not receive a response, it will be closed and locked after one business day.

Best Regards,

Nicolás Niño
Microsoft Community Support
Support Hours: Monday to Friday 7:30–17:30 EST (Except US Public Holidays)
Estimated Response Time: Within 1 Business day

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Hello, Stefan Đurić.

We hope you are doing well.

Please let us know if any additional assistance is needed.

Otherwise, we will proceed to close and lock the case the next business day.

Best regards,

Nicolás Niño
Microsoft Community Support
Support Hours: Monday to Friday 7:30–17:30 EST (Except US Public Holidays)
Estimated Response Time: Within 1 Business day

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Great! Thanks for your feedback.

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Hello, Stefan Đurić.

We hope you are doing well.

We wish we could be of more help. However, since we did not receive further replies from your end, we require closing and locking this case. If there is any other inquiry we can help you with, we invite you to post a new question.

Please keep in mind that once this case has been locked and closed, you cannot reply.

Best regards,

Nicolás Niño
Microsoft Community Support
Support Hours: Monday to Friday 7:30–17:30 EST (Except US Public Holidays)
Estimated Response Time: Within 1 Business day

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Great! Thanks for your feedback.

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Question Info

Last updated February 27, 2025 Views 73 Applies to: