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Just created a business @onmicrosoft.com account but stuck in a infinite connection loop

Lopyzka 20 Reputation points
2026-04-01T07:57:42.4166667+00:00

Hello

was trying to create a partner ID for my newly created business.

I have encountered an error, now I have an onmicrosoft.com that cannot connect (always go back to the login page after successful login)

Or when i try to complete the process on the partner creation it says

Looks like you're already using ******@xxxxxx.onmicrosoft.com with another Microsoft service. Sign in with this account, or create a new account.

then I try to login with this onmicrosoft and I get

Action Required Security defaults are enabled to keep your organization secure. Follow the prompts to set up a multifactor authentication method to protect your account.

so I click next and the following message show up

Screenshot From 2026-04-01 09-56-10

what can I do??

kind regards,

Tim

Microsoft Security | Microsoft Entra | Microsoft Entra ID

Answer accepted by question author

Shubham Sharma 16,550 Reputation points Microsoft External Staff Moderator
2026-04-01T08:49:59.33+00:00

Hello Lopyzka

Thank you for reaching out to Microsoft Q&A.

Based on your description, it appears that you are trying to login with Microsoft personal account, not an Azure work or school account. This is why you’re encountering errors when trying to access the Azure Portal.

Issue: When users try to login to Azure portal using their personal Microsoft Account (Outlook, Hotmail..) they are getting AADSTS160021 or AADSTS16000 or AADSTS50020 errors.

Reason: When signing in to the Azure portal with a personal Microsoft account, you are automatically connected to the Microsoft Services tenant (Tenant ID: f8cdef31-a31e-4b4a-93e4-5f571e91255a).

You can verify this by navigating to Microsoft Entra ID > Overview, where you’ll see this Tenant ID.

This default tenant does not have a directory associated with it, which you can confirm by going to the Settings blade. As a result, you cannot perform administrative actions such as:

  • Creating users or groups
  • Registering enterprise applications
  • Managing resources

In short, it’s a system tenant with restricted capabilities, and administrative access is not granted by default.User's image

Solution: To fully utilize the Azure portal, you need to create your own tenant instead of relying on the Microsoft Services tenant.

Follow these steps:

  1. Open an in-private/incognito browser window (to avoid automatic sign-in via SSO).
  2. Navigate to https://azure.microsoft.com/en-us/free/ to sign up for a free Azure account.
  3. During the setup, you’ll be prompted to create a new directory (tenant). Once completed, you will become the Global Administrator of this new tenant, giving you full access to manage Azure resources.

User's image

Let me know if you need help with the sign-up process or configuring your new tenant.

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