Hi Command Health,
Thanks for reaching out to Microsoft Q&A.
Looks like you need to add yourself as a guest user and then access portal. Please follow below steps:
Invite an external guest user
Sign in to the Microsoft Entra admin center as at least a User Administrator.
Browse to Identity > Users > All users.
Select Invite external user from the menu.
Basics for external users
In this section, you're inviting the guest to your tenant using their email address. For this quickstart, enter an email address that you can access.
Email: Enter the email address for the guest user you're inviting.
Display name: Provide the display name.
Invitation message: Select the Send invite message checkbox to send an invitation message. When enabling this checkbox, you can also set up the customized short message and another CC recipient.
Select the Review and invite button to finalize the process.
Review and invite
The final tab captures several key details from the user creation process. Review the details and select the Invite button if everything looks good.
An email invitation is sent automatically.
After you send the invitation, the user account is automatically added to the directory as a guest.
Accept the invitation
Now sign in as the guest user to see the invitation.
Sign in to your test guest user's email account.
In your inbox, open the email from "Microsoft Invitations on behalf of Contoso."
In the email body, select Accept invitation. A Permission requested by: page opens in the browser.
- Select Accept.
The My Apps page opens. Because we haven't assigned any apps to this guest user, you'll see the message "There are no apps to show." In a real-life scenario, you would add the guest user to an app so the app would appear here.
Invite an external guest user
Tip
Steps in this article might vary slightly based on the portal you start from.
Sign in to the Microsoft Entra admin center as at least a User Administrator.
Browse to **Identity** > **Users** > **All users**.
![Screenshot of the All users page.](https://learn.microsoft.com/en-us/entra/external-id/media/quickstart-add-users-portal/all-users-page.png)
Select **Invite external user** from the menu.
![Screenshot of the invite external user menu option.](https://learn.microsoft.com/en-us/entra/external-id/media/quickstart-add-users-portal/invite-external-user-menu.png)
Basics for external users
In this section, you're inviting the guest to your tenant using *their email address*. For this quickstart, enter an email address that you can access.
**Email**: Enter the email address for the guest user you're inviting.
**Display name**: Provide the display name.
**Invitation message**: Select the **Send invite message** checkbox to send an invitation message. When enabling this checkbox, you can also set up the customized short message and another CC recipient.
![Screenshot of the invite external user Basics tab.](https://learn.microsoft.com/en-us/entra/external-id/media/quickstart-add-users-portal/invite-external-user-basics-tab.png)
Select the **Review and invite** button to finalize the process.
Review and invite
The final tab captures several key details from the user creation process. Review the details and select the **Invite** button if everything looks good.
An email invitation is sent automatically.
After you send the invitation, the user account is automatically added to the directory as a guest.
![Screenshot showing the new guest user in the directory.](https://learn.microsoft.com/en-us/entra/external-id/media/quickstart-add-users-portal/new-guest-user-directory.png)
Accept the invitation
Now sign in as the guest user to see the invitation.
Sign in to your test guest user's email account.
In your inbox, open the email from "Microsoft Invitations on behalf of Contoso."
![Screenshot showing the B2B invitation email.](https://learn.microsoft.com/en-us/entra/external-id/media/quickstart-add-users-portal/quickstart-users-portal-email-small.png)
In the email body, select **Accept invitation**. A **Permission requested by:** page opens in the browser.
![Screenshot showing the Review permissions page.](https://learn.microsoft.com/en-us/entra/external-id/media/quickstart-add-users-portal/consent-screen.png)
Select **Accept**.
The **My Apps** page opens. Because we haven't assigned any apps to this guest user, you'll see the message "There are no apps to show." In a real-life scenario, you would [add the guest user to an app](https://learn.microsoft.com/en-us/entra/external-id/add-users-administrator#add-guest-users-to-an-application) so the app would appear here.
Reference Link:https://learn.microsoft.com/en-us/entra/external-id/b2b-quickstart-add-guest-users-portal
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