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[GH-ISSUE #161] Reminders broken (again) in Outlook 2016/Office 365 #624

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opened 2026-03-01 17:40:27 +03:00 by kerem · 6 comments

kerem commented

2026-03-01 17:40:27 +03:00

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Originally created by @Todo18 on GitHub (Aug 31, 2016).
Original GitHub issue: https://github.com/aluxnimm/outlookcaldavsynchronizer/issues/161

While this is a fantastic add-in, we are having troubles enabling reminders within Outlook 2016. We've read the previous (dates back to 2013) issue, where .PST-files had to be explicitly set to 'show' reminders (Outlook 2013), but not only does Outlook 2016 not offer this option anymore (not in the app, nor in the settings in the Control Panel), it also doesn't seem related.

Problem: The error message 'The reminder for will not appear because the item is in a folder that doesn't support reminders' shows up when an attempt is made to add a new item (with a reminder set) to a CalDAV-calendar inside Outlook 2016. The CalDAV-calendar is running on a sabre/dav webserver, and has worked before in Mozilla Thunderbird, for example. Synchronisation works as you'd expect. New items show up everywhere, deleted items are properly disposed of.

Moving the calendar from one 'folder' (.PST-file) to another does nothing to resolve the issue. The option that older versions of Outlook offered ('Show reminders...') is no longer available, and thus no solution.

Any thoughts? Many thanks!

Originally created by @Todo18 on GitHub (Aug 31, 2016). Original GitHub issue: https://github.com/aluxnimm/outlookcaldavsynchronizer/issues/161 While this is a fantastic add-in, we are having troubles enabling reminders within Outlook 2016. We've read the previous (dates back to 2013) issue, where .PST-files had to be explicitly set to 'show' reminders (Outlook 2013), but not only does Outlook 2016 not offer this option anymore (not in the app, nor in the settings in the Control Panel), it also doesn't seem related. Problem: The error message 'The reminder for <X> will not appear because the item is in a folder that doesn't support reminders' shows up when an attempt is made to add a new item (with a reminder set) to a CalDAV-calendar inside Outlook 2016. The CalDAV-calendar is running on a sabre/dav webserver, and has worked before in Mozilla Thunderbird, for example. Synchronisation works as you'd expect. New items show up everywhere, deleted items are properly disposed of. Moving the calendar from one 'folder' (.PST-file) to another does nothing to resolve the issue. The option that older versions of Outlook offered ('Show reminders...') is no longer available, and thus no solution. Any thoughts? Many thanks!

kerem closed this issue

2026-03-01 17:40:28 +03:00

kerem commented

2026-03-01 17:40:28 +03:00

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@aluxnimm commented on GitHub (Aug 31, 2016):

Use another folder type or maybe this one helps
http://answers.microsoft.com/en-us/office/forum/office_2016-outlook/outlook-2016-calendar-reminders/8f40bcdd-e3fc-4f29-acaf-544f48d63992

@aluxnimm commented on GitHub (Aug 31, 2016): Use another folder type or maybe this one helps http://answers.microsoft.com/en-us/office/forum/office_2016-outlook/outlook-2016-calendar-reminders/8f40bcdd-e3fc-4f29-acaf-544f48d63992

kerem commented

2026-03-01 17:40:28 +03:00

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@Todo18 commented on GitHub (Aug 31, 2016):

Like we said: that option doesn't work (anymore). We think we may have found a solution, however, which may be useful for other users/the future: connecting to the server as-is, will add that CalDAV calendar (at least in our case) to the default 'Internet-subscriptions' folder, which is a special case, since you can't make it the default folder. Creating a new folder (.PST-file) via the account options, making it the default, and moving the calendar to that folder, solved the issue for us. Reminders are not only saved (as they did before ?), but are also shown.

Thanks!

@Todo18 commented on GitHub (Aug 31, 2016): Like we said: that option doesn't work (anymore). We think we may have found a solution, however, which may be useful for other users/the future: connecting to the server as-is, will add that CalDAV calendar (at least in our case) to the default 'Internet-subscriptions' folder, which is a special case, since you can't make it the default folder. Creating a new folder (.PST-file) via the account options, making it the default, and moving the calendar to that folder, solved the issue for us. Reminders are not only saved (as they did before ?), but are also shown. Thanks!

kerem commented

2026-03-01 17:40:28 +03:00

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@Todo18 commented on GitHub (Aug 31, 2016):

If anyone requires a more detailed explanation, I'll gladly provide one. :)

@Todo18 commented on GitHub (Aug 31, 2016): If anyone requires a more detailed explanation, I'll gladly provide one. :)

kerem commented

2026-03-01 17:40:28 +03:00

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@aluxnimm commented on GitHub (Aug 31, 2016):

if you can provide detailed steps we can add it to the readme and wiki.

@aluxnimm commented on GitHub (Aug 31, 2016): if you can provide detailed steps we can add it to the readme and wiki.

kerem commented

2026-03-01 17:40:28 +03:00

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@Todo18 commented on GitHub (Sep 6, 2016):

Okay, here goes. To fix this problem in Outlook 2013, do as follows:

Create a new storage folder in Outlook via the File menu, Info, Account Settings. In the Data Files tab, you can Add a new (.pst) data file. After the file has been added, Make it the default [data file], and close the dialog.
Go to the Calendar window, right click on the calendar that's giving you problems, and select Move Calendar. In the dialog, pick the data file that you created in the first step, and confirm.
Should do the trick!

(Don't forget to update the storage folder in the CalDav Synchronizer settings!)

@Todo18 commented on GitHub (Sep 6, 2016): Okay, here goes. To fix this problem in Outlook 2013, do as follows: 1. Create a new storage folder in Outlook via the File menu, Info, Account Settings. In the Data Files tab, you can Add a new (.pst) data file. After the file has been added, Make it the default [data file], and close the dialog. 2. Go to the Calendar window, right click on the calendar that's giving you problems, and select Move Calendar. In the dialog, pick the data file that you created in the first step, and confirm. Should do the trick! (Don't forget to update the storage folder in the CalDav Synchronizer settings!)

kerem commented

2026-03-01 17:40:28 +03:00

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@aluxnimm commented on GitHub (Sep 6, 2016):

thx! will add it.

@aluxnimm commented on GitHub (Sep 6, 2016): thx! will add it.