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Level 1

42 points

iOS 10 exchange calendar sync issue

iOS 10 has introduced a bug that causes a problem with Exchange calendar sync. I am using an iPhone 5S and an iPad Air, with iOS 10.0.2 on both. My employer provides a shared calendar using Office 365 Exchange. I use Outlook 2013 on a Windows 7 laptop. Ever since I upgraded my iPhone & iPad to iOS 10 I've encountered a problem with syncing my calendar. Specifically, when I delete a single instance of a recurring event from my iPhone or iPad, the change does not sync to the server and is not reflected on my other devices. There is no problem if I do the deletion from Outlook on my laptop. I use recurring all-day reminders as "to-do's" so not being able to delete them from the device is a problem for me.

Based on something I saw in another form I tried disabling the "Events Found in Apps" button in Settings on my iPhone and iPad, and then disabling and re-enabling the Exchange calendar sync. This didn't resolve the problem.

Is there a fix or a workaround for this issue? If not, does anyone know how I can report this to Apple on the off chance they might care enough to fix the problem?

iPhone 5s, iOS 10

Posted on Sep 25, 2016 10:17 AM

Best reply

ronss

Level 1

14 points

Posted on Jan 9, 2017 8:11 AM

I have had this issue for 10-12 months. Specifically, calendar events added to the ios calendar do not always make their way to exhchange (and then to Outlook on my PC), but calendar events added to my Outlook calendar on my PC always make it to the ios calendar. Using the Outlook ios app instead of the native ios calendar is a workaround, but I want to use the native ios calendar. Near as I can figure, it is simply that apple does not play nice with Microsoft Active Sync, but what I find astonishing is that Apple refuses to acknowledge this as an issue and refuses to address correct it. ****, they have yet to reply to this thread. I'm seriously thinking of ditching my iphone7 and switching to Android as I cannot run the rise of the calendar events that I put in on my iphone not making it to my Outlook calendar (which is my main calendar). Has anyone discovered a solution? Thanks.

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56 replies

Nov 11, 2016 1:56 AM in response to bcmyers2112

Hi, has anyone found a fix for this yet? We are having the problem with multiple accounts (iOS 6S devices, Exchange 2010 and a combination of iOS 10.x & 9.3.5 OS's). Also found an MS article https://support.microsoft.com/en-gb/kb/3196954 about items missing from mobile devices using activesync but no fix yet. We use Airwatch as an MDM which uses activesync and so we can't use the Outlook app.

Kem81

Level 1

4 points

Nov 11, 2016 2:21 AM in response to bcmyers2112

Hi, We are also having the same issue, we are using Exchange 2010 with IOS 10.x and 9.3.5 all on iPhone 6s'. we also use Airwatch as an MDM.

Nov 15, 2016 6:15 PM in response to Kem81

Hey Kem,

I have the exact same issue where random calendar items are missing or incomplete.

My environment is exactly the same as yours.

> AW as mdm (on prem)

> Exch 2010

> ios devices running both latest 10 / 9's

Shoot me a msg if you want to have a chat, i'm up for discussions.

So far i've discovered 3-4 users experiencing this when they are travelling at the moment. As of now, i've asked them to turn off the calendar (wipes current entries) and then turn it back on to resync the calendar portion

simon-l

Level 1

4 points

Nov 24, 2016 1:01 AM in response to Kem81

Hi Kem,

Quick question, are you using the native iOS e-mail client or the AirWatch e-mail client?

//Simon

simon-l

Level 1

4 points

Nov 24, 2016 1:04 AM in response to kaneshir0

Hi,

I curious and I have the same question for you as for Kem, are you using the iOS e-mail client or the AirWatch e-mail client?

//Simon

Nov 24, 2016 2:39 AM in response to bcmyers2112

Hi Simon,

We are using the native Apple email client - the users are more familiar with it and prefer it. Same setup as yourself.

James

Dec 6, 2016 3:16 PM in response to bcmyers2112

Did you find a fix for this? My outlook calendar disappeared...I have turned off my phone and rebooted and tried to resync the calendar, but to no avail. Help!

Dec 6, 2016 3:18 PM in response to gizzmogeek

Did you find a fix for this? My outlook calendar disappeared...I have turned off my phone and rebooted and tried to resync the calendar, but to no avail. Help!

Dec 12, 2016 10:55 AM in response to bcmyers2112

Similar issue for me. If I make changes to a recurring appointment on my phone, the person I share that calendar with can't see it, but it's on my phone and on my macbook. My workaround is to ONLY make any changes or additions of recurring appiontments on my macbook. I'm not sure when this issue started. I have a macbook pro using OS X El Capitan 10.11.6 and my phone is an iPhone 6S iOS 10.2. The person I share this calendar with is on an iPhone 5 so maybe that's part of the problem?

Jan 26, 2017 7:49 AM in response to ronss

You described this issue exactly as we are having the problem. I have 14 employees and am considering dumping apple as we can't trust the calendars.

mlmrtn

Level 1

8 points

Jan 28, 2017 10:26 AM in response to ronss

I had this issue prior to getting my Apple Watch, so I don't think the Watch is causing the problem.

LAegis

Level 1

13 points

Feb 7, 2017 10:30 AM in response to ronss

I'm having the same issue but do not have an Apple watch.

Kem81

Level 1

4 points

Feb 14, 2017 5:12 AM in response to simon-l

Hi,

We are using the native iOS email client. We are still experiencing these random calendar syncing issues.

-Kem

Feb 16, 2017 5:27 AM in response to bcmyers2112

This is a forum for USERS to help other USERS.

Unfortunately we cannot assist with patching the problem as we do not work for Apple.

werdi

Level 1

4 points

Feb 21, 2017 12:59 AM in response to LAegis

My issue was: declined occurrences in Outlook did not get deleted on iPhone and got re-synced with Outlook. Turing Off and On the calendar on the iPhone solved it.

Thx

iOS 10 exchange calendar sync issue