Being able to share my calendar with others 

Hi there, since a few weeks I can't sync anymore with my exchange server at Ionos hosting. I tried to remove the account in the OneCalendar app and even deleted and reinstalled the app.

Now I get the following error message when I try to connect to the exchange server:

"Error while adding your Exchange account: net_http_ssl_connection-failed".

I also tried to use OneCalendar without validation of the certificate with the same result.

I bought several premium versions of OneCalendar for my family to sync on all devices. Would be great if this works again ASAP.

Kann ich auch eine Terminplanung integrieren?

I love the windows One Task integration with One Calendar. Display makes my life so much easier for MS To Do items. But I also use One Calendar on my phone and there is no Task integration.

i don’t even need the One Task middleware to manage tasks. I would be happy with edit click directly opening task in MS To Do. 

but I use my phone as much or more than my computer and I would love to see my tasks in my calendar like on my laptop. ⭐️🙏

Pleaseeeeee remove the extra days that you see in the month view. Only show the current month, OR add a solid line or break that distinguishes one month from the next. It is so hard on the eyes. 

It would be great to be able to check my calendar on my Pixel Watch 2.  

削除が機能しない

I have some daily meetings which are pulling from my work calendar clogging up this one. I cannot delete these as I need to ensure that time does not get booked up. I do not want to hide the entire account as there are other meetings which I want to keep on my OneCalendar, however, I do not need all of them. This may be niche, however, it would be a really useful feature to make sure you only have what you need to know. 

it shows sync error numerous times

This is the issue I keep getting on my computer and phone. It is driving me nuts and I have tried everything. I am about to get rid of onecalendar. 

Too many requests from Identifier:6eedc5c9-d182-4f3d-b52b-cb910a2fe331 under category:throttle.aad.ags.subscriptionservice.app.list. Please try again later. (TooManyRequests)

Action: Subscribe Calendar: Calendar

XCalendarApp.ProviderBase.Exceptions.AccountRequestException: Too many requests from Identifier:6eedc5c9-d182-4f3d-b52b-cb910a2fe331 under category:throttle.aad.ags.subscriptionservice.app.list. Please try again later. (TooManyRequests) ---> CodeSpark.Apps.Common.Net.Exceptions.HttpException: Response status code does not indicate success: 429 (). ---> System.Net.Http.HttpRequestException: Response status code does not indicate success: 429 (). at System.Net.Http.HttpResponseMessage.EnsureSuccessStatusCode () [0x00040] in <598c91aa0c6d486f89eb9f421dbc278d>:0 at CodeSpark.Apps.Common.Net.HttpClients.OneHttpClient.ExecuteRequest (System.Threading.CancellationToken cancellationToken, System.String url, System.String httpMethod, System.String requestContent, System.String authorizationHeader, System.Collections.Generic.Dictionary`2[TKey,TValue]

Hello OneCalendar Team,

we currently have an issue when synchronizing our calendar with M365. We get a too many requests error 429 from one calendar. We can just dismiss this error and the calendar keeps working fine, but it is showing again and again. We tried to fix this issue by removing all calendar entries from the past year so there are not too many synchronized. This unfortunately did not help. Is there any solution to this issue?

Hi I use OneCalendar to see multiple calendars at once in yearly view. However I noticed that events after 2 years are not syncing from my mobile to my tablet or my Windows app. Is this something that can be fixed please? For example I added an event on my android phone for October 2026 but this is not syncing onto my laptop or tablet. I've tried updating all the apps but this does not make a difference. I purchased the premium version too hoping that would fix the problem but it did not unfortunately. I appreciate your help. Thank

If wife creates Icloud Family event, on iphone I would like to add a local reminder to the event on my phone.

I have my personal calendar and my work calendar setup, as well as my S/O’s work calendar. They have 6/7 appointments a day, and it dominates my calendar view. I’d appreciate a quick way to toggle certain calendars from being included in the view, maybe in the hamburger menu?

Too many functions pay on iPhone 

it’s very hard to switch from Google cal to One cal

Pls help fixing this issue. 

All my booking in my one calendar gone. I follow the process go to setting open app setting full excess and go back to my calendar and sync. Nothing come back. What I need to do? 

Love this app because of the weak view.  But please add more color options for appts.   also perhaps a lighter faded option for times events and full color for all day events would be great.