Calendar entries gone

Question

Calendar entries gone

Nick 1

I'm using MS Office 2019 (however I have the same problem on MS Office 2010 so I don't think it's related to the office version). Recently I removed an email account (POP) and added it back (as IMAP), and then my calendar entries were gone. However, I don't understand how that could have caused the issue, as my calendar entries are saved in a separate file (Outlook.pst) which isn't related to the email account I removed and added back.

What's very strange: I can still see all the deleted items in the Outlook.pst file, however the actual calendar entries are gone (except 2 entries for some reason, those were there before; but I had hundreds).

I used the scanpst.exe on my Outlook.pst file, but no changes.

What may have happened here, and how to get my old calendar entries back?

ChristyZhang-MSFT 16,966 Reputation points Microsoft Vendor

2022-01-24T02:15:49.193+00:00
Hi @Nick ,

Welcome to our forum!

In order to further confirm the problem, please provide information related to the following questions for us to better study:

How did you get the separate file (Outlook.pst)? Was it exported from another account or created in outlook by yourself?

Are the missing entries in your calendar imported from the separate file (Outlook.pst)? Or separate file (Outlook.pst) is just opened in your Outlook?

And how did you removed an email account (POP) and added it back (as IMAP)? In Outlook>File>Account setting or Control Panel>Mail? And if you do that in a same profile or in a new profile?
Nick 1 Reputation point

2022-01-24T05:11:06.33+00:00

Thank you Christy for having a look at my case.

How did you get the separate file (Outlook.pst)? Was it exported from another account or created in outlook by yourself?

It's the standard pst file which comes with outlook. It's not connected to any email account.

Are the missing entries in your calendar imported from the separate file (Outlook.pst)? Or separate file (Outlook.pst) is just opened in your Outlook?

No import, it's the standard file.

And how did you removed an email account (POP) and added it back (as IMAP)? In Outlook>File>Account setting or Control Panel>Mail? And if you do that in a same profile or in a new profile?

I did it via Account setting. I did it in the same profile. However, as mentioned above, I don't think it's related to the removing and re-adding of the email account, because that email account has a separate pst (and no calendar entries at all). The issue is with the standard outlook.pst file which has the calendar entries saved.
ChristyZhang-MSFT 16,966 Reputation points Microsoft Vendor

2022-01-25T08:51:43.587+00:00

Hi @Nick ,

Thanks for your reply!

Because I don't have your .pst file, the same test can't be operated. Considering the impact of the previously configured POP account, it is recommended that you try to remove the current IMAP account and configure the POP account again to check whether the previous calendar items exist. If it does exist, it is recommended that you try to export the calendar item(File>Open & Export > Import/Export > Choose Export to a file > Next > Click Outlook Data File (.pst)) and import the file after you are configured as an IMAP account.

ChristyZhang-MSFT 16,966 Reputation points Microsoft Vendor

2022-01-24T02:15:49.193+00:00

Hi @Nick ,

Welcome to our forum!

In order to further confirm the problem, please provide information related to the following questions for us to better study:

How did you get the separate file (Outlook.pst)? Was it exported from another account or created in outlook by yourself?

Are the missing entries in your calendar imported from the separate file (Outlook.pst)? Or separate file (Outlook.pst) is just opened in your Outlook?

And how did you removed an email account (POP) and added it back (as IMAP)? In Outlook>File>Account setting or Control Panel>Mail? And if you do that in a same profile or in a new profile?
Nick 1 Reputation point

2022-01-24T05:11:06.33+00:00

Thank you Christy for having a look at my case.

How did you get the separate file (Outlook.pst)? Was it exported from another account or created in outlook by yourself?

It's the standard pst file which comes with outlook. It's not connected to any email account.

Are the missing entries in your calendar imported from the separate file (Outlook.pst)? Or separate file (Outlook.pst) is just opened in your Outlook?

No import, it's the standard file.

And how did you removed an email account (POP) and added it back (as IMAP)? In Outlook>File>Account setting or Control Panel>Mail? And if you do that in a same profile or in a new profile?

I did it via Account setting. I did it in the same profile. However, as mentioned above, I don't think it's related to the removing and re-adding of the email account, because that email account has a separate pst (and no calendar entries at all). The issue is with the standard outlook.pst file which has the calendar entries saved.
ChristyZhang-MSFT 16,966 Reputation points Microsoft Vendor

2022-01-25T08:51:43.587+00:00

Hi @Nick ,

Thanks for your reply!

Because I don't have your .pst file, the same test can't be operated. Considering the impact of the previously configured POP account, it is recommended that you try to remove the current IMAP account and configure the POP account again to check whether the previous calendar items exist. If it does exist, it is recommended that you try to export the calendar item(File>Open & Export > Import/Export > Choose Export to a file > Next > Click Outlook Data File (.pst)) and import the file after you are configured as an IMAP account.

Answer 1

The cause of the error where calendar entries are missing after removing and re-adding an email account can vary, but here are a few possible reasons:

Synchronization issue during the switch from POP to IMAP.
Data file corruption in the Outlook.pst file.
Human error, such as accidental deletion or overwriting of calendar entries.
Software conflicts or bugs in the MS Office version.

To address the issue and retrieve your old calendar entries, try the following:

Check for synchronization or configuration problems: Ensure that your IMAP account is properly configured to sync the calendar data with the server. Double-check the settings to ensure everything is in order.
Consider data file corruption: It's possible that the Outlook.pst file containing the calendar entries has become corrupted. You can start by running the scanpst.exe tool (Inbox Repair Tool) to repair the file. However, if it doesn't resolve the issue, you can explore other options.
Explore third-party PST repair tools: There are reputable third-party tools available, such as Stellar Repair for Outlook, Kernel for Outlook PST Repair, and SysTools Outlook Recovery, that specialize in repairing PST files. These tools may provide better chances of recovering your lost calendar entries.
Restore from a backup: If you have a recent backup of your Outlook.pst file, restoring it can help retrieve the missing calendar entries. It's always a good practice to maintain regular backups of your Outlook data.

Let me know if the above steps worked out for you or if you need any further assistance regarding this.

Calendar entries gone

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