Set-CASMailbox: A parameter cannot be found that matches parameter name 'OneWinNativeOutlookEnabled'.

Olly Rogers 0 Reputation points
2025-02-27T10:50:39.2633333+00:00

Hello - I'm trying to control and enable the new outlook experience as per the official Microsoft documentation.

I have installed and updated to the newest Exchange module 3.7.1, but the command to Set-CASMailbox with the tag -OneWinNativeOutlookEnabled simply does not exist?

Is there a newer module yet to be released?

Microsoft Exchange Online Management
Microsoft Exchange Online Management
Microsoft Exchange Online: A Microsoft email and calendaring hosted service.Management: The act or process of organizing, handling, directing or controlling something.
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Accepted answer
  1. Andy David - MVP 152.5K Reputation points MVP
    2025-02-27T11:11:30.99+00:00
    1 person found this answer helpful.

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  1. Olly Rogers 0 Reputation points
    2025-02-28T10:10:06.9+00:00

    As per Andy's instruction, ran the command as Global admin and this worked. Classic case of misleading Powershell Error Codes.

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