Why can't I add guests to a Teams Channel?

Hi @Lindsay Brink 

Thank you for reaching out to us regarding the issue you're experiencing with adding guests to your Microsoft Teams group.  

It appears that recent updates may have affected how guest access works, particularly on the mobile app. To ensure everything is set up correctly, please follow the steps below using the Teams desktop or web app: 

Step 1: Check if Guest access is enabled in Teams Admin Center 

1. Go to Microsoft Teams admin center. 
2. Sign in with your admin account (You must have administration role). 
3. In the left menu, go to Settings & policies  
4. Go to Global (Org-wide defaut) setting > Scroll down and choose Guest access. 
5. Make sure the “Allow guest access in Teams” toggle is ON. 
6. Click Save if you made any changes. 

Step 2: Confirm Guest access in Microsoft 365 Groups Settings 

1. Go to Microsoft 365 Admin Center. 
2. Click on Show all > Navigate to Settings > Org settings. 
3. Select Microsoft 365 Groups. 
4. Ensure both of these are checked: 
   • “Let group owners add people outside your organization as guests” 
   • “Let guest group members access group content” 
5. Click Save if needed. 

Step 3: Check Azure Entra (Azure AD) External Collaboration Settings 

1. Go to Azure Portal. 
2. Navigate to Azure Active Directory  
   • On search bar, type and select: “Azure Active Directory”  (Note: This is now branded as Microsoft Entra ID, but the navigation remains the same.) 
3. On the lefr menu bar, Choose Manage > External Identities  
4. Sellect External collaboration settings. Make sure both of these are checked:  
   • Guest users have the same access as members  is enabled. 
   • Member users and users assigned to specific admin roles can guest users including guests with member permissions is selected. 
5. Save any changes. 

Step 4: Add the Guest via Azure Entra (Azure AD) 

1. In Azure Active Directory, go to Users → New guest user. 
2. Fill in the guest’s email and name. 
3. Click Invite. 
4. Once invited, the guest will appear in your directory and can be added to Teams. 

Step 5: Add the Guest to the Team 

1. Open Microsoft Teams (desktop or web). 
2. Go to the Team you want to add the guest to. 
3. Click More options (⋯) next to the team name → Manage team. 
4. Click Add member. 
5. Enter the guest’s full email address. 
6. Select “Add as guest” when prompted. 
7. Click Add. 

Note on Mobile App 

• The mobile app may not show the option to add guests anymore due to recent updates or limitations. 
• Always use the desktop or web version for managing guest access. 

Please feel free to reach out again if you have any further questions or need additional guidance. 

Best regards, 

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Good day @Lindsay Brink  

Hope things are running smoothly on your end. 

Following up on the support thread we've been working on. I hope the information I shared in my previous answer resolve the issue you were facing. If you are still facing the same issue or need assistance with anything else, kindly respond to this email, and I will be happy to help. 

We want to make sure everything is working as expected and that your experience remains uninterrupted. 

Thank you for your patience and understanding throughout the troubleshooting process.  

I look forward to hearing from you soon. 

As other users will also search information in this community, please click "Accept Answer" and kindly upvote, your valuable vote will definitely also help other users who have similar queries easily to find the correct channel and useful information more quickly.     

I appreciate your kind words.   

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Hi @Lindsay Brink  

I hope you are having a great day. 

I'm reaching out again to follow up on your issue and check if everything has been resolved. My goal is to ensure your experience remains smooth and hassle-free. If you're still encountering any problems or have run into new challenges, please let me know which steps you're currently stuck on and happy to provide further help whenever you need it.  

If you have any further questions, feel free to tag me in your reply so I can assist you directly. 

Looking forward to your update. 

As other users will also search information in this community, please click "Accept Answer" and kindly upvote, your valuable vote will definitely also help other users who have similar queries easily to find the correct channel and useful information more quickly.     

I appreciate your kind words.   

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