Trouble adding and seeing Group Calendar in Outlook

Question

Trouble adding and seeing Group Calendar in Outlook

ninelyoko 0

I have an O365 group that I can't get to show up in Groups on Outlook, no matter how much we edit the group or request permissions from the admin center. I've heard that we may need to recreate the group. Cannot add the calendar either. It's the default onmicrosoft account as well, wondering if it is acting like a distribution list, there's another group and account with the same name that is just a list.

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Answer 1

Mia - Tr 555 Microsoft External Staff Moderator

Hi @ninelyoko,

Thank you for posting in Microsoft Q&A Forum.

Regarding to your description, could you please share a few more detail?

Could you please which steps that the O365 group is created? (e.g., Từ Outlook, Teams, hay Admin Center)
Does the issue appear on which version of Outlook? (e.g., Outlook on the web, New Outlook desktop)
Is there another group with the same name? What type of account are you using to check the group, does it have any admin roles? Also, do you see this group in Teams or SharePoint?
May I know which resource suggested that you might need to recreate the group?
How did you try to add the group calendar? Was it through Outlook Web, Outlook Desktop, or Teams?

In the meantime, you can refer to this article to check if the group might be hidden from Outlook: Office 365 groups not visible in Outlook client. This is the article is related to the solution mentioned in the discussion Microsoft 365 group doesn't appear in Outlook or Outlook on the web.

Thank you for your time, I'm looking forward to your response.

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ninelyoko 0 Reputation points

2025-07-30T16:12:44.5433333+00:00
Group was created in the admin center, I see that it did not have the "groups" label

Both versions of Outlook Classic and New (latest O365 versions)

There is another group with the same name with ******@ourdomain.org that looks like a distribution list. this one has ******@organization.onmicrosoft.com. We are using our GA account to access it in admin center. Can see in teams, based on screenshot, it looks like it's not set up with some access to groups and a calendar.

To recreate the group we would use sharepoint and create a new O365 group, I can't see where to edit the existing one.

We attempted adding the calendar from all 3, but per screenshot, it looks like it's not setup with a group and the default features that come with it, including the groups tag and calendar.
Mia - Tr 555 Reputation points Microsoft External Staff Moderator

2025-08-05T07:52:38.6633333+00:00

Hi @ninelyoko,

Thank you for your reply and I'm sorry for my late response.

Based on your description and from my understanding, this group does not appear to have been fully provisioned as a Microsoft 365 group. That’s why the Groups label, mailbox, and calendar are missing. The issue is very likely due to the group may not have been fully provisioned or there’s a conflict with the distribution list that has the same name.

To confirm, could you please check in Exchange Admin Center (Recipients > Groups) whether this group has a mailbox. Alternatively, you can run:

Get-UnifiedGroup -Identity "GroupName" | fl PrimarySmtpAddress,AccessType

If the mailbox is missing, Outlook will not show the group calendar.

In that case, as you mention before, the recommended solution is to recreate the group as a Microsoft 365 group, and make sure it has a unique name in Exchange Admin Center or SharePoint. When the group is created correctly, the mailbox and calendar will be provisioned automatically, and it will then show up in Outlook, Teams, and SharePoint as expected.

I hope this helps. If you have any further questions or concerns, please don't hesitate to let me know.
Mia - Tr 555 Reputation points Microsoft External Staff Moderator

2025-08-07T06:18:02.1033333+00:00

Hi @ninelyoko,

Good day and I hope you're doing well.

It has been a while and I am writing to see how things are going with this issue. Have you encountered any difficulties, or is there anything else I can assist you with?

Thank you for your valuable time.
ninelyoko 0 Reputation points

2025-08-07T15:06:05.9566667+00:00

Yes, these conclusions are what I drew as well. I will explain that the provisioning was not done correctly and advise the team to recreate this group with the correct provisions. We will be rolling out Sharepoint admin roles soon to better maintain each department's standardization when these groups are created. Thank you.
Mia - Tr 555 Reputation points Microsoft External Staff Moderator

2025-08-11T07:00:51.52+00:00

Good day @ninelyoko and thank you for the update.

I hope everything goes as smoothly as possible, and I appreciate you taking the time to share your concern. If you think the answer in the thread could help others in a similar situation, you might consider marking it as the accepted answer. This helps others quickly find relevant information and supports the community.

Your input is greatly appreciated and helps improve the experience for everyone. If there’s anything else I can do to assist, please don’t hesitate to let me know.

Once again, thank you for your valuable time.

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Trouble adding and seeing Group Calendar in Outlook

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