Yammer Support for Guest Access Reaches General Availability

Yammer networks configured in Microsoft 365 mode now support Azure B2B collaboration guest users. Which is nice, if it worked. But it doesn’t for me. Guest access worked for me during the testing phase but now that the feature has reached general availability, it won’t – using the same accounts. It’s odd. Yammer’s implementation of Azure B2B Collaboration has some other quirks too, all of which mean that it’s not very usable.

Use the Graph API to Work with Azure AD Access Reviews

You can create an Azure AD Access Review for all guests in teams and groups in your tenant and then see what’s happening with the Graph API. In this case, we use PowerShell with the API to grab the access review data and create a report about the overall status of the review in a tenant.

How to Leave a Microsoft 365 Tenant by Removing Your Guest Account

Over time, you might join several Office 365 tenants as a guest. Some of those Azure AD guest accounts probably won’t be needed forever and you want to clean them up. This is easy for individuals to do through their MyAccount page, which might just be a page that they never knew existed.

How to Monitor New Guest Accounts Added to Teams

You can easily add people from outside your Office 365 tenant to the membership of Teams, but some oversight of who those people are and what teams they join is probably needed. This PowerShell script shows how to find records in the Office 365 audit log and figure out if they relate to the creation of new guest accounts before sending email asking to justify the addition of the new account.

Azure Active Directory Risky Sign-In Policy Blocks Guest Access to Office 365 Tenants

Office 365 makes extensive use of Azure Active Directory guest accounts. Implementing a risky sign-in policy is a good idea, but it can have the unfortunate side-effect of suddenly blocking guest accounts that could previously access tenant resources. If blocks happen, they can only be lifted through administrative intervention in the guest account’s home tenant.

Email One-Time Passcodes for Azure Active Directory

Microsoft has launched email one-time passcodes (OTP) into preview for Azure Active Directory guest accounts. It’s all to do with better collaboration. OTP doesn’t support Teams, Planner, or Office 365 Groups yet, but it can be used to share documents from SharePoint Online or OneDrive for Business.

Managing Guest Users in a Microsoft 365 Tenant

How many guest users does your Office 365 tenant have? And how many of those accounts are actually used? Given that many Office 365 applications now generate guest user accounts to facilitate external access to content, managing these accounts is a growing concern.

Enabling Access to Teams for Guest Users with PowerShell

During transitions, things sometimes don’t go so smoothly. Such is the case if you want to enable or disable guest user access to Teams and find that the setting to control the access is no longer available in the Office 365 Admin Center. But PowerShell can control the setting, so that’s the solution to the problem.

How to Control the Access of Guest Users to Confidential Information in Microsoft 365 Groups and Teams

Many Microsoft 365 Groups and Teams are used to hold confidential information. Sometimes you don’t want guest members to have access to the information. A variety of methods are available to control guest access.