I can no longer edit calendar entries in outlook 1.2024.1023.300

Question

Problem started today (11/8/2024). Every time I create a new calendar entry, the entry flashes for a second on the calendar, then I see a popup reading "Something went wrong; we couldn't save your calendar event." I have tried shutting down and restarting my computer; nothing seems to help.

Answer 1

Hi @Jim Sizer

Welcome to our forum!

What is your account? Microsoft 365 or something else?

And whether the error occurred on your personal calendar or a shared calendar？

Does the error occur on the Outlook desktop client? To further confirm if the issue is more related to Outlook desktop client, if possible, please log in to your web mail and do the same test to check if the issue persists. 

Meanwhile, here are some steps you can try to resolve it:

1. Update Outlook:
   • Ensure your Outlook is up to date. Go to File > Office Account > Update Options > Update Now
2. Clear Offline Items:
   • Ensure your Outlook has enough space. Go to Right-click your calendar, select Properties>Under General, check Folder Size and clear Offline Items.
3. Use Microsoft Support and Recovery Assistant:
   • Refer to the link and create a detailed scan of your Outlook Calendar to identify and resolve issues.
4. Review Calendar Permissions:
   • If the error occurred on a shared calendar, ensure you have the necessary permissions to edit events in the shared calendar. Sometimes permissions can change or get updated incorrectly.

Hope it helps!

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Answer 2

It looks like MS is aware of this issue, and they provided a temporary solution here:

https://answers.microsoft.com/en-us/outlook_com/forum/outlk_win-outtop_new-outsub_ofh/unable-to-save-new-calendar-events/320e37ee-5f71-44bb-8c20-25e22f4c77be?messageId=822dad3e-0c92-4fbc-81a2-8c2e47c31d7d

Our team reproduced and found out the cause of the problem: When a third-party IMAP/POP email accounts, such as Gmail, Yahoo, is set as the primary account of the new Outlook, this problem of not being able to create calendar events will be triggered. However, only the primary account cannot create events, and other accounts in the application can create events normally. This problem does not occur for primary account of Microsoft domains (outlook.com, hotmail.com etc.).

Solution: Please add another mailbox that is not frequently used as the primary account, so that your current mailbox will be able to create calendar events normally. Click [Settings] - [Accounts] - [Manage] - [Set as primary account].

Answer 3

The fix is to update to the latest version: https://answers.microsoft.com/en-us/outlook_com/forum/outlk_win-outtop_new-outsub_ofh/events-in-new-outlook-can-not-be-edited-deleted-or/122287b5-c124-43d3-bccf-ed2ca657f03a?messageId=481676c0-9610-49f9-87df-2469e7946e35

Answer 4

One of the employees in my company was having the same error when trying to change an existing meeting or event on The new Outlook . I found a work around that really fix it

Before this make sure the user has a valid license , E5 , E3 or Exchange plan 2 .

1.Go to Exchange to find the user mailbox

2. Selec the Mailbox option to assign a retention policy MRM ( If you do not have a retention policy here are the steps https://learn.microsoft.com/en-us/purview/set-up-an-archive-and-deletion-policy-for-mailboxes)

3.Select yor existing MRM policy , I used one that archives 1 year old emails ( this create a new Archive folder under your principal mailbox and move all your old emails to the Archive folder) in your case can be different 3 , 6 9 months it depends on your MRM policy.

4.On The Exchange profile user click on Others tab : select Mailbox Arhive - Select Enable and add the user name .

5.Run a powershell script to force the sync with the mailbox archive MRM policy to get a fast answer:

try {

# Connect to Exchange Online using your admin account

Connect-ExchangeOnline -UserPrincipalName "ADMIN ACCOUNT" -ShowProgress $true

Write-Host "Connected to Exchange Online."

# Start the Managed Folder Assistant to process the mailbox (processes both primary and archive by default)

Start-ManagedFolderAssistant -Identity "USER ACCOUNT"

Write-Host "Managed Folder Assistant processing initiated for USER ACCOUNT."

}

catch {

Write-Error "An error occurred: $_"

}

finally {

# Disconnect from Exchange Online

Disconnect-ExchangeOnline -Confirm:$false

Write-Host "Disconnected from Exchange Online."

}

6.Wait up to 15 minutes then give a try to modify the event or meeting .

I hope this works for you as it did for me.