reoccurring iPhone calendar notification

OK, finally found the solution. As calendar doesn't have the outbox, and the message gets stuck "failed to send", this message just sits in the inbox of the calendar. Even if the message is acknowledged, it has no effect.

Assumption:

iOS ver: 11.2.2

Solution:

Open Settings> Accounts & Passwords

Select the account that is causing this issue (Outlook, gmail, Exchange etc).

- Turn off "calendar" for this account. System will display a message as "Are you sure you want to continue? All exchange* calendars will be removed from your phone".

- Select option - Delete from My Phone

Note: all calendar invites will be deleted. Notifications will disappear 🙂.

Again turn on "calendar" for the account. All your invites will be synced back and restored.

Problem solved!

I use my phone for business so I have a ton of meetings in "replied". It would take me better than a day to go through them and since they are connected to client I cannot delete them . Many of them are recurring on a bi-weekly baiss. There must be a way of identifying the offending calendar entry without having to go through each one.

Hi,

I have iOS 11.1.2 (this update seems to be when this problem started!) My calendar app doesn't show an "inbox" nor can I figure out a way to turn on and off the calendar. These pop-ups are driving me crazy!! . Please see image:

Hi I_rina:

I have an Apple 6+ with the same problem. I went to Settings - Calendar - and then to default calendar as there is no "accounts" heading. I shifted from one default calendar to another and then back to the exchange calendar that I use and then rebooted. Same problem.

I then went to Settings - Accounts and thought that maybe I would turn the Exchange Calendar off and then on but when I do that it says that it will delete all the entries from my phone which I do not want.

Can you please help me? Thanks!

Hi

Do you have anything in ‘replied’ when you go to inbox on your calendar app?

If any that have been replied to have been since cancelled , try removing them from your calendar.

I think it’s to do with meetings that get cancelled or changed but it isn’t pushed properly to the phone.

None of the recommended actions work for me on my iPhone7/iOS11.2. Still getting the recurring

"Calendar Invitation Your response to the invitation cannot be sent."

Then the "OK" button to dismiss the notification with the notification continuing to pop up.

I was finally able to get it fixed. When the reoccurring appointment came up in my Outlook calendar on my Laptop I was able to accept (or decline) and the notification finally disappeared!! After over a year I finally got it - it was be because the phone could send the response back. Not sure about that.

The calendar error was successfully removed, however, after trying to re-add my google account it won’t let me. Now most of my contacts are out of whack and I can’t get my gmail calendar connected. Is there a way to fix this? Please help! I need this back to normal to perform my job efficiently!

Hi I_rina

I had that same challenge and that fix seems to have worked for me! Thank goodness. Cheers for your help 😀

I have exactly the same problem.

Anyone else with the same problem with exchange/office 365 calendar since upgrading to iOS11?

Yes I have the same issue. It is incredibly annoying. Is there a fix? The one recommended to disable and re-enable with restart did not work for me.

I’m not removing my outlook calendars from my phone either.

It’s clearly an MS exchange error with iOS 11.

This happens to me also and I haven't even upgraded yet