Hi 영재 이,
Welcome to Microsoft Q&A forum.
From your description, you can turn on live captions in Microsoft Teams, but the “Live translated captions/Translate to” option doesn’t show up, even though you recently purchased Microsoft 365 Premium.
Based on Microsoft’s current documentation, live translated captions in Teams meetings require either a Teams Premium license or a Microsoft 365 Copilot add-on license. If neither the meeting organizer nor your account has one of those eligible add-ons, Teams may only show standard live captions, and the translation menu won’t appear.
One quick check to confirm which path applies: are you signed into Teams with a personal Microsoft account (Outlook.com/Hotmail) or a work/school account managed by an organization?
In the meantime, please consider the following:
1, Confirm the licensing scenario for the meeting
- If the meeting organizer has Teams Premium or Microsoft 365 Copilot, participants can use translated captions for that meeting.
- If the organizer does not have it, then only participants who personally have Teams Premium or Microsoft 365 Copilot will see the “Translate to” option.
2, Verify you are looking in the correct place in the meeting UI
- Turn on live captions, then open Caption settings > Language settings and look for the Translate to toggle. This is the documented location when the feature is available.
3, If you are using a work/school account, check whether your organization allows it
- In managed tenants, caption/translation availability can be affected by Teams meeting policies that admins control. If your organization manages your Teams account, your IT admin can review the caption/transcription settings and related meeting policies.
For reference, Microsoft’s official guidance on this feature is here: Use live captions in Microsoft Teams meetings - Microsoft Support
If you would like to contact support to have the subscription and entitlement scenario reviewed for your specific sign-in, you can start from Microsoft’s Contact Us page, which will present self-help options first and then offer additional assisted support when available. If you’re on a work/school account, please involve your IT admin first.
I hope this clarifies why the menu is missing and helps you get to the fastest resolution.