Hi @John Sandpiper According to your description, do you mean you want to use different accounts to schedule Teams meeting?Is this default account from the two different accounts?
Based on my test, when you want to use one account to schedule Teams meeting, you could select this account's calendar and then click it to schedule Teams meeting.
In this case, you might try using the Microsoft Teams app directly to schedule the meeting and ensure that it integrates correctly with Outlook. If there is no issue in Teams client, please ensure that you are signed in with the correct accounts in both Microsoft Teams and Outlook. Sometimes, signing out and signing back in can resolve sync issues.
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