KB: Outlook Calendar Invites (.ICS) Not Showing in New Outlook

Overview

Users may report that when they download and open a calendar invite (.ics file), the event appears in the classic Outlook application but does not show in New Outlook or shared calendars such as SharePoint.

Cause

This behavior occurs because .ics files are typically associated with the classic Outlook desktop application. When opened:

• The file launches in classic Outlook

• The event may be saved locally or in a non-synced calendar store

• New Outlook only displays events that exist in the user's Exchange/365 mailbox

As a result, the event does not sync to New Outlook or SharePoint.

Resolution

Use one of the following methods to ensure the event is added to the correct mailbox calendar.

Option 1 (Recommended): Import into New Outlook

1. Open New Outlook

2. Navigate to the Calendar view

3. Click Add Calendar

4. Select Upload from file

5. Choose the downloaded .ics file

This ensures the event is added directly to the user's mailbox and will sync across all platforms.

Option 2: Forward the Event to Yourself

If the event was already opened in classic Outlook:

1. Open the event in classic Outlook

2. Click Forward

3. Send the invite to your own email address

4. Open the email in New Outlook

5. Click Accept on the invite

This method reintroduces the event into the mailbox calendar.

Impact

Users may believe events were successfully added, but they are not visible across devices or shared calendars, leading to missed meetings or confusion.

Recommendation

Encourage users to:

• Avoid double-clicking downloaded .ics files

• Always import calendar files directly into New Outlook

For additional assistance, contact the IT Helpdesk.