Adding contact list to calendar invite cancelled event?

Question

Adding contact list to calendar invite cancelled event?

Escobar, Alexis 0

I created a contact list to make creating events and inviting attendees to said event more efficient. I went in and edited the event to add on this created list. Doing so cancelled the event for those who had been invited previously?

Will I be able to use this contact list moving forward but only on new events? Did this happen because I deleted all attendees and then added the contact list?

Gabe Bratton 836 Reputation points Microsoft Employee Moderator

2025-10-15T13:52:40.1066667+00:00

By making the change you did removing the individual members but adding them back with a Contact Group the meeting should still be on their calendars. They may have gotten a cancellation but would have gotten a new meeting request due to the change. I would double check with those recipients, but they should have the meeting on their calendar.

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Gabe Bratton 836 Reputation points Microsoft Employee Moderator

2025-10-15T13:52:40.1066667+00:00

By making the change you did removing the individual members but adding them back with a Contact Group the meeting should still be on their calendars. They may have gotten a cancellation but would have gotten a new meeting request due to the change. I would double check with those recipients, but they should have the meeting on their calendar.

Answer 1

Vergil-V 13,380 Microsoft External Staff Moderator

Hi @Escobar, Alexis

Thanks for reaching out to the Microsoft Q&A forum.
Based on your inquiry, I understand you're seeking confirmation regarding the behavior between your contact list and Outlook calendar events.

From my testing and research, I’d like to share some insights that may help clarify your question:

When you add new attendees to an existing event, it does not affect the original attendees. The event will remain on their calendars unless you explicitly remove them.
You can continue using your contact list with your existing calendar events without impacting current attendees.

I hope this helps clarify your question. If you have any additional questions or updates, please feel free to reach out. I'm here to help.

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Vergil-V 13,380 Reputation points Microsoft External Staff Moderator

2025-10-15T09:48:10.66+00:00

Hi @Escobar, Alexis
I just wanted to kindly follow up to see if you’ve had a chance to review my previous response.

We would greatly appreciate any updates you may be able to provide, particularly regarding the usefulness of the information we shared. Your feedback is essential to our ongoing efforts to enhance the quality of our support.

Thanks again for your time, and we look forward to hearing from you
Vergil-V 13,380 Reputation points Microsoft External Staff Moderator

2025-10-17T08:26:18.7033333+00:00

Hi @Escobar, Alexis
Hope you're having a good day.
May I ask if there have been any updates regarding the interaction between your contact list and Outlook calendar events?
Have you had a chance to review the responses shared so far?
I’d appreciate any updates you can provide, and please let me know if there’s anything further I can do to assist.

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Adding contact list to calendar invite cancelled event?

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