I can't find the break outs tab in MS Teams

Hi @Andrew MacKichan 
Thank you for posting your question in the Microsoft Q&A forum. 

Based on Microsoft documentation, to see Breakout rooms in your meeting controls, you must be a meeting organizer of a scheduled private meeting, a Meet Now meeting, a scheduled channel meeting, or a channel Meet Now meeting. Additionally, you need to join the meeting from a supported Teams client for macOS. 

You will not see Breakout rooms in your meeting controls if:  

• You are not a meeting organizer, or you were not set as a breakout room manager. 
• The meeting was canceled. 
• The thread where the channel meeting was organized was deleted. 
• The meeting was organized in a private or a shared channel. 
• You joined from an unsupported client. 
• You are not from the same organization as the meeting organizer. 
• Breakout rooms are disabled by a policy through your admin portal. 

You can read more at Breakout rooms troubleshooting guide in Microsoft Teams - Microsoft Support 

I hope this helps. 

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