I am unable to access the sandbox in Microsoft learn when do AZ900 sandbox

Question

I am unable to access the sandbox in Microsoft learn when do AZ900 sandbox

Joe Taylor Maurice 20

Dear Microsoft Support

Exercise create a Azure virtual machine.

When I go to sign into my account, I get the following messages

'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.

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

To resolve this, I have tried the following

Accessing the site with different browsers, Edge,Firebox,Chrome

Using an iPad

Clearing the cache data

Logging in and out

Used a different computer

I have Freind who works at Microsoft in Auckland CBD he tried his laptop and user ID which ends in @Microsoft.

He has the same issue so, for me if someone who works at Microsoft can't access a learning resource, I believe the problem is independent of me.

I am feeling a little frustrated because this is preventing me from learning, please help.

Kind Regards

Joe Maurice This question is related to the following Learning Module

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Answer 1

TP 163.9K Volunteer Moderator

Hi Joe,

This is known issue with sandbox.

You should be able to work around the issue by first Activating the sandbox (solving puzzles, reviewing/accepting permissions, etc.) and then once you see the sign-in box appear on the right open a new browser tab. In this new tab, browse to https://shell.azure.com. If your existing sandbox hasn't expired you can use that instead of activating a new one.

When prompted, click Bash

User's image

Next choose No storage account required, for Subscription select Concierge Subscription, and click Apply.

User's image

After several seconds delay while a cloud shell is requested and connected to, you should see $ prompt. At this point you can complete the exercises instructions, copy/paste code from exercise tab to cloud shell tab as needed, etc.

NOTE: You need to complete tasks in Unit 3 Exercise - Create an Azure virtual machine and Unit 9 Exercise - Configure network access tasks using same sandbox, before it expires. Otherwise the Unit 9 exercise tasks will fail.

Please click Accept Answer and upvote if the above was helpful.

Thanks.

-TP

Benjamin Danilov 30 Reputation points

2025-03-23T12:20:44.1866667+00:00

Hi TP, I have performed this method myself several times to fix this exact same error and this doesn't work at all, I tried doing this with 2 different accounts and it doesn't work, is there a different method?

Or could you explain what to do, I made subscription with powershell and bash and I have access to the cloudshell on portal, are you suggesting we do the exercises in azure portal while the sandbox is active? will we still recieve badges for completing the exercise?
VarunTha 15,095 Reputation points Microsoft External Staff Moderator

2025-03-24T17:08:18.24+00:00

Hi Joe Taylor Maurice,

Just checking in to if you had a chance to see the responses provide by TP to your question. Please let us know if they were helpful and don't hesitate to reach out to us if you face any issue.

If the answer provided by has helped, please click on the "Accept Answer" button so that it is useful for other members in the Microsoft Q&A community.

Thank you.
Joe Taylor Maurice 20 Reputation points

2025-03-24T17:13:23.7733333+00:00

yes this worked thank you. it would be better tho if we didn't have to do a work around.
VarunTha 15,095 Reputation points Microsoft External Staff Moderator

2025-03-24T17:16:23.0633333+00:00

Hi Joe Taylor Maurice,
We're delighted to hear that your issue has been resolved. If you encounter any further challenges, please don't hesitate to get in touch with us, and we'll be more than happy to provide additional assistance.

Thank you.
TP 163.9K Reputation points Volunteer Moderator

2025-03-24T17:33:01.1933333+00:00

yes this worked thank you. it would be better tho if we didn't have to do a work around.

Please click Accept Answer to close up this thread.

Thank you.