One Calendar is no longer usable on my iPhone15 Pro.

1. Sync error with outlook calendar linked to outlook.com email address.

2. Uninstalled One Calendar app, reinstalled, same problem.

3. Removed MS outlook account calendar from One Calendar app

4. Re-added MS outlook account calendar to One Calendar app, new error

5. "Error adding your MicrosoftGraph account: An internal server error occured. The operation failed.

6. One Calendar has permanently lost access to my outlook calendar, making the app no longer functional on iOS.

7. Is this something that can be fixed, or should we seek refunds via the app store?

Addition of travel time that shows on OneCalendar like Apple calendar.  Most appointments require travel with a reminder.

thanks

There is no tray icon in Win11 Business and it cannot be activated.

Is it a bug? Or do I need to pay for the premium app to get in into the tray?

I don't want to pin One Calendar to the taskbar.

Possibility to deactivate it forever.

i got calendars from my company, reachable with a vpn, which is not activated. So i got at the App Start, a Sync error

Along the same line it’d be great if there’s an option for the widget to show the next 4 weeks starting from the current week (instead of showing by fixed months).

While your monthly calendar is very nice, it would be of assistance to have the choice to wrap the text of an event.

Please add support for showing multiple event colors on a single day in the year view. It would give a much clearer overview and help users instantly understand what kind of day they’re looking at — without switching views.

Right now, the year view only shows one color per day – even if you have multiple events like vacation, a doctor’s appointment, and sports. This makes it hard to see what’s really going on.

Thank you 

Right now, the year view only shows one color per day – even if you have multiple events like vacation, a doctor’s appointment, and sports. This makes it hard to see what’s really going on.

Please add support for showing multiple event colors on a single day in the year view. It would give a much clearer overview and help users instantly understand what kind of day they’re looking at — without switching views.

My events are not synching. an we Integrate or synch with Samsung calendar

Hi,

Is it possible to upload the dutch national holidays?

For your Windows app, you have OneTasks and you can sync google tasks and microsoft to do. I think it would be dope to have an IOS version so i can see mark off tasks on the calendar !

I’d like to see the ability to include Holidays from around the world (maybe by way of a checkbox?). Holidays such as Easter or Christmas etc. obviously the option to include permanent or as a one-off would still be good. It would have to be globally regional, like UK or USA etc. 

Thank You 

Autokorrektur fehlt

App needs email reminders 

During the sync. proces this message appears:

unique constraint failed ciexpanded_data.uniquemodelid

Since a couple of weeks i got a sync issue with an outlook calendar. All items (as far as i can see) do sync however after a while a sync / constraint error is reported.

Reinstalling the app does not solve the issue, also no issues appear with other mailboxes.

Any idea what is causing it or more importantly how i can resolve it. 

Thanks in advance for your support!

Best regards,

Albert

No longer shows calendar on widget which is the reason I use it

I would like a second notification for an appointment e.g. 1 day and 15 minutes before