Missing checkbox "Add online meeting to all meetings" in outlook web app with 365 Business account

Dear Luca,

Good day to you and hope you are doing well.

I am glad to see that my suggestion helped you to guide you towards the right solution. You can also give vote on my reply. With your vote, other users who are facing same query can easily find this thread and check suggestion when they search on community. Your vote helps other user to resolve their queries as well. At this point, we highly appreciate your precious time and kind cooperation.

Thank you very much.

Sincerely,

Roger Shen

Hi Roger, thanks for getting back to me.

There is a curious issue with this setting - it is by default blank (as expected) - but:

DefaultMeetingDuration : 30
AddOnlineMeetingToAllEvents : False
OnlineMeetingsByDefaultEnabled :
WorkspaceUserEnabled : False
AgendaMailEnabled : False

...attempting to set the option returns a date validation error (?!?):

Set-MailboxCalendarConfiguration -Identity ******@domain.com -OnlineMeetingsByDefaultEnabled $true
Write-ErrorMessage : ||L'ora di fine immessa è antecedente l'ora di inizio. L'ora di inizio deve precedere l'ora di fine.
In C:\Users\Admin\AppData\Local\Temp\tmpEXO_kjnekmob.y2x\tmpEXO_kjnekmob.y2x.psm1:1189 car:13

•         Write-ErrorMessage $ErrorObject  
  

•         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
  

  • CategoryInfo : NotSpecified: (xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx:ADObjectId) [Set-MailboxCalendarConfiguration], DataValidationException
  • FullyQualifiedErrorId : [Server=PR3P191MB1359,RequestId=3752c9fc-c176-395e-dce9-0487d705d1ae,TimeStamp=Mon, 20 Jan 2025 11:00:44 GMT],Write-ErrorMessage
  Apparently there is a problem with some date stamp caused possibly by a time zone bug. It says the end hour is prior to the start hour (supposedly of this operation) hence the data validation exception. This is quite certainly a bug or misconfiguration.

If I simply launch a get-mailboxcalendarconfiguration of the user in fact I get this (identity removed):

AVVISO: L'oggetto xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx: è danneggiato o non è compatibile con i requisiti di supporto Microsoft ed è in uno stato incoerente. Si sono verificati i seguenti errori di convalida:
AVVISO: L'ora di fine immessa è antecedente l'ora di inizio. L'ora di inizio deve precedere l'ora di fine.

WorkDays WorkingHoursStartTime WorkingHoursEndTime WorkingHoursTimeZone

Weekdays 08:00:00 00:01:00 W. Europe Standard Time

-> The object is damaged or in an incoherent state

In fact the reported start working hour was 08:00:00 but the end was 00:01:00 - impossible. So I set the working hours start time and end time with the cmdlet to a consistent accepted value and voilà the object was fixed. I tried again to set that Meetings setting from the online calendar web options but I still don't see it - possibly I need to wait for a while for something to sync. If after waiting I still don't see the option, I will try to set it using the cmdlet which should override any other inconsistent setting.

Thanks for leading me in the right direction.

Luca

Hi Roger,

  thanks for the reply: the issue is not the browser as this occurs only on that account - if I switch account the others are fine. Also the same happens on other PCs (I tried this on mine using his account and the person experiences the same on his while with my account the option is there) so it's definitely not a browser or cache issue. I am a Global Admin but when I ask for support I get forwarded to email the reseller which is awkward ad on other tenants I get a direct support request - but this is another story.

Thanks

Hi IT_Luke

Good day! Thank you for posting to Microsoft Community. We are happy to assist you.

I am truly sorry for the inconvenience this issue has caused you. Based on the description, I understand that one user who has M365 business standard license assigned do not have the "Add online meeting to all meetings" option in Outlook on the web - Settings - Calendar - Events and invitations.

To further clarify the issue, please kindly confirm the following information.

1. What kind of web browser is the user using when accessing Outlook on the web? Is the browser fully updated?
2. Could the user try to use a different browser and check the issue?
3. Please kindly clear the browser cache/cookie and retry.

If the issue persists, as it is an account-specific issue and given it is happening on the OWA end (server-related), it is highly recommended to open a support request directly with the Microsoft support team. Microsoft's back-end support team can check the advanced logs and investigate the situation further. Due to the limited permissions and access resources of our community moderators, we are unable to collect certain types of registration information in public forums for this reason and for the privacy of our users' data. Microsoft 365 global admins in your Microsoft work or school account can contact the Microsoft 365 support team on the back end through support requests. Here’s what your Microsoft 365 Global Admin should do next: 

1. Submit a Service Request: The Global Admin should create a service request with Microsoft support to get advanced technical assistance and diagnostics. For detailed instructions on how to get support, please refer to Get support - Microsoft 365 admin.
2. Call Microsoft Support: For additional assistance, use this link to find the appropriate contact number: Global Customer Service phone numbers - Microsoft Support

Your understanding and cooperation are greatly appreciated.

Sincerely,

Roger Shen