Room mailbox not sending approval to organizer

Sílvia Carmen 96 Reputation points
2021-03-30T15:11:33.197+00:00

We have an hybrid environment using O365 with exchange online and Exchange Server 2016 on prem. I went to Exchange 365 Admins Centre and created a resource room mailbox and made myself a delegate to the room. this means I have to approve all the meeting room requests, which is exactly what I am looking for. When someone schedules a meeting to that room, I do receive an email asking for meeting approval and the person who requested the meeting receives an email from the meeting room saying approval pending. However, once I approve the meeting, the organizer does not receives any notification saying the meeting was approved. Is there something I am missing? Any help is appreciated. Thanks in advance.

Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Sílvia Carmen 96 Reputation points
    2021-03-31T09:01:11.327+00:00

    Thanks KaelYao-MSFT, if figured it out!

    The problem was I have created the room resource in Exchange on-prem and not on the cloud.
    So, yesterday I deleted it and created again but in Exchange O365 Admin Center on the cloud and now it's working as expected.

    Thank you so much.

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  1. Sean Bradley 0 Reputation points
    2023-02-07T22:13:38.49+00:00

    Kael's answer sent me in the right direction. I found that the parameter "TentativePendingApproval"was set to True.

    Once I ran this command, everything worked as planned:

    Set-Calendarprocessing -identity <room mailbox name> -TentativePendingApproval $False