How do I fix a calendar issue where I don't have permission to create an entry?

Question

How do I fix a calendar issue where I don't have permission to create an entry?

Michael Abraham 0

I am not able to add calendar events to my personal calendar. I keep getting an error message stating "You don't have permission to create an entry in this folder". When someone sends me a calendar invite, it goes to this calendar, however, I am not able to create events, only accept them.

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Answer 1

Harold Milan 15,805 Independent Advisor

Hi,

This error usually happens because your Contacts folder was set to ReadOnly during migration. To fix it, you can use the MFCMAPI tool to update the folder settings so you can add or edit contacts again. If you’re not comfortable using advanced tools, I recommend contacting Microsoft Support for assistance.

I hope this helps!

Michael Abraham 0 Reputation points

2025-12-31T14:07:25.1466667+00:00

Thank you for your reply. However, I am able to add or edit contacts. It is the calendar I am having issues with. It is the "Calendar (this computer only)" calendar that I am not able to edit (I can't add new appointments or meetings). I am able to edit other calendars, including the calendar under the default data file, but not the "Calendar (this computer only)" one and, unfortunately, the "Calendar (this computer only)" is the one that new events are automatically added to when I am sent a calendar invite. To give some background, I had previously always created and used a local pst file to have all e-mail accounts save to. The problem it has eventually grown too large, so my goal is to still have a local pst file to save the important items I want, however, use IMAP for the actual e-mail addresses and then move important items to the local pst folders. Not sure if this is what caused the issue.

FYI I am using classic Outlook.
Hornblower409 3,515 Reputation points

2026-01-01T11:07:55.4833333+00:00

@Michael Abraham Some background on how you setup your local (this computer only) Calendar please.

You created a new PST (Outlook Data File)?
https://support.microsoft.com/en-us/office/create-an-outlook-data-file-pst-to-save-your-information-17a13ca2-df52-48e8-b933-4c84c2aabe7c

Or you used an existing PST file and Opened it?
https://support.microsoft.com/en-us/office/open-and-close-outlook-data-files-pst-381b776d-7511-45a0-953a-0935c79d24f2#id0ebbf=classic_outlook
Michael Abraham 0 Reputation points

2026-01-05T19:45:53.5966667+00:00

@Hornblower409 I created a new PST file and then exported/imported folders from the Outlook on my former computer. This allowed me to import several folders/e-mails i had organized in my previous computer.

I now have 5 data files. 4 are OST files (where 3 are gmail accounts and 1 is an exchange for my work e-mail). The 5th data file is the PST file I had created separately and want to use to save/store my important e-mails. I want to use the PST file for my important e-mails organized how i want them, contacts, calendar, and notes. This is so my contacts and personal stuff only get saved on my computer and not in my google account/cloud.
Hornblower409 3,515 Reputation points

2026-01-06T01:09:55.83+00:00

@Michael Abraham said

the PST file I had created separately and want to use to save/store my important e-mails.

1 -- And you have no problems copying/moving/deleting emails in the PST? The only issue is with the Calendar folder in the PST?

someone sends me a calendar invite, it goes to this calendar

2 -- Was that your intent? Did you want the Calendar folder in the PST to be your default Calendar?

3 -- One quick thing to try - Run Outlook as Admin (only once) and see if you can add an entry to the PST Calendar.

https://robert365.com/article/starting-outlook-as-an-administrator-on-windows-10
Michael Abraham 0 Reputation points

2026-01-09T15:00:40.11+00:00

@Hornblower409 thank you again for your replies and help with this.

I formerly had all of my separate gmail accounts set up as POP accounts and saved to the 1 same PST file that i created. E-mails, contacts, Calender events, notes were all saved to the 1 same PST file. I would manually sync my contacts, Calender events, and notes to my phone with a 3rd party app. I was happy keeping contacts and notes synced this way, but it was annoying that calendar events that i created would not automatically sync with my Google account and then automatically show on my phone's calendar.

Fast forward to years of doing this, my PST file has grown too large. I got a new computer, and my goal, if possible, was to keep a PST file for all of my e-mail folders, contacts, and notes. I was then going to set up my individual gmail accounts as IMAP so that they would automatically sync (I would move important e-mails I wanted to keep to my PST file/folders). I was hoping i could just sync my calendar with my main gmail account so that i would not need to manually sync my calendar. I do not want my contacts and notes to sync with Google, i want to keep them only saved in the PST file.

During the process, i changed the default data file to the PST file. I don't know why calendar, contacts, and notes each have a separate option that shows "(This computer only)". I am able to make any changes i want to the PST calendar. I am NOT able to make any changes to the "(This computer only)" calendar. However, any e-mailed events i accept, automatically go to the "(This computer only)" calendar.

A Google search has come back stating that syncing the calendar between Classic Outlook and Google is actually not an option :-/ So, it this is the case, then the goal is to use the PST file as the default calendar, contacts, and notes file. I just want to keep the gmail accounts set up as IMAP and move important e-mails i want to keep for the long term in my PST file. I want to have calendar invites automatically save to the PST calendar.
Hornblower409 3,515 Reputation points

2026-01-09T18:31:16.5733333+00:00

@Michael Abraham said

I don't know why calendar, contacts, and notes each have a separate option that shows "(This computer only)"

Outlook can not mix different item types. Each type (mail, calendar, contacts, and notes) must have it's own folder. The normal method would be to have a single PST file with multiple folders (for each type) inside.

syncing the calendar between Classic Outlook and Google is actually not an option

Correct. You must use a third party tool for that.

then the goal is ...

Outlook should have created a PST/OST file automatically for your GMail IMAP when you added the email account that holds only what is synced between your client and Google. You should have created a new PST file for everything else and make it the "Default" Data file.

So if you do File -> Account Settings -> Account Settings. On the "Email" tab you should have only the PST/OST that Outlook created for you GMail account. And on the "Data File" tab you should have the GMail PST/OST and the PST you created. With your "private" PST marked as Default.

A screen shot of your left Navigation pane and your Accounts "Email" and "Data Files" tabs with all folders expanded might help. Be sure to redact any personal information in the image.

I have a similar setup (my "private" PST is named "Default") and here is what it looks like:

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How do I fix a calendar issue where I don't have permission to create an entry?

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