ISSUE
Users cannot edit a single occurrence of a recurring Webex meeting from Outlook. When attempting to make changes, the following error messages may be encountered:

Error: 'You cannot edit this Webex meeting because it has already ended' when editing a single occurrence of a recurring

RESOLUTION
The issue may be caused by a discrepancy between the time zone settings on the user's computer and the time zone in which the meeting was initially scheduled.

To resolve this issue, follow the steps below:

1. Check the time zone settings on your computer to ensure they match the time zone used when scheduling the Webex meeting.
2. If the time zones do not match, you can adjust your computer's time zone settings to align with the meeting's scheduled time zone.
3. Once the time zones are aligned, could you try to edit the single occurrence of the recurring meeting again?
4. If the issue continues, you may need to reschedule the meeting.

For more detailed instructions on how to integrate and manage Webex meetings with Microsoft Outlook, please refer to the following resources:

• Webex Integration to Microsoft Outlook for Windows Overview
• Webex Integration to Outlook for the Mac Overview

If you continue to experience issues after following the resolution steps, don't hesitate to contact Webex support for further assistance. It is also recommended that you check for updates to the Webex Desktop App and Outlook integration plugin, as updates may contain fixes for known issues.

CAUSE
This issue is typically caused by a mismatch between the computer's time zone settings and the time zone in which the Webex meeting was scheduled. This can lead to confusion about the meeting's status, causing the system to believe that the meeting has already ended or that the specific occurrence no longer exists.