*Bulletin ID*	A2E_225
*Last Review*	1/14/2023
*Revision*	1.0
*Previous IDs*	None
*Obsoletes*	None

Calendaring Issues and Best Practices, Fixes for mobiles not showing all and legacy links to issues 

Symptom

Smartphone Calendaring does not have the same data located in Outlook, OWA, Entourage or Exchange.  It is correct in Outlook, but not on phones.
Check for current versions of Outlook and Exchange, mobile device OS updates and the most current version of Add2Exchange. 

Description

The following are known issues with MS Calendaring in Outlook, Exchange Server and Outlook for Mac and Entourage with some suggestions on how to handle appointments in a group collaborative setting.

Enhanced Calendaring Issues
Known issues with Outlook Desktop Shared Calendar Improvements - Microsoft Support
Calendar sharing in Microsoft 365 - Microsoft Support

Problem:  Some items not showing up on IPhone but do show up correctly in Outlook

Guide for iPhone sync for calendars: Best Practices on Syncing Calendar Appointments and Contacts

Synopsis – most likely it has to be a Config issue on the phone if not syncing to phone and is in Outlook, or it could be the recurring data or invalid reminders overwhelming the phone, see below.  See link above for Best practices.

On IPhone
In Settings:  Calendars are not set to sync all items
Or in the actual Calendar app, go to Calendars at bottom and select to see that non default calendar
Or many items have no end date on recurring appointments in Outlook.  We have the A2O Toolbox to correct this en-mass and a group policy above link to fix going forward.
Or ICloud is on for calendars, and reminders is on.  Select to leave them there if turned off

Other Resolutions and References

For Recurring Meetings, review this post for Add2Exchange Configurations and review the sublink
Exchange 2010 Calendaring Tool to fix internal Recurring appointment issues: Description here:
also, Microsoft Calendar FIX tool for DST time shifts: http://support.microsoft.com/kb/930879
also see this link for updates and incompatibilities. http://support.diditbetter.com/Forums/Thread.aspx?pageid=1&mid=2&ItemID=2&thread=180

Disable Social Connector and iCloud Sync for Email, Calendars and Reminders, and Contacts if necessary
 

Best Practices For Add2Exchange Calendaring and Rescheduling

http://guides.diditbetter.com/a2e-guide/source_item_deleted_resolution.htm?zoom_highlightsub=rescheduled

Please update Exchange and Outlook to the latest versions, review the latest service packs through links below.

(Please report dead links for archives):

Outlook 2010:
Microsoft Release Notes - 
http://support.microsoft.com/kb/2796794
http://www.networkworld.com/community/blog/exchange-outlook-calendaring-problems-lost-me
http://social.technet.microsoft.com/Forums/office/en-US/3be1f1bf-7dbf-425c-a398-bdab3dcfcd1c/outlook-2010-calendar-issue-cant-delete-items-of-shared-calendar-but-can-move-it-of

Outlook 2007:
Older Microsoft Release Notes - 
http://support.microsoft.com/kb/971878
http://support.microsoft.com/kb/2796794
http://support.microsoft.com/kb/286166
http://www.slipstick.com/outlook/2007/outlook-2007-known-issues/#cal
http://www.networkworld.com/community/blog/exchange-outlook-calendaring-problems-lost-me

Outlook 2003:
Older Microsoft Release Notes - 
http://support.microsoft.com/kb/971878
http://support.microsoft.com/kb/2222377
http://support.microsoft.com/kb/286166
http://support.microsoft.com/kb/894470
http://www.networkworld.com/community/blog/exchange-outlook-calendaring-problems-lost-me
 

Exchange 2010:
Microsoft Release Notes - 
http://support.microsoft.com/kb/971878
http://support.microsoft.com/kb/2222377
http://support.microsoft.com/kb/2768774
http://www.networkworld.com/community/blog/exchange-outlook-calendaring-problems-lost-me

Exchange 2007:
Microsoft Release Notes - 
http://support.microsoft.com/kb/943371
http://support.microsoft.com/kb/556074
http://support.microsoft.com/kb/971878
http://support.microsoft.com/kb/2222377
http://support.microsoft.com/kb/2768774
http://www.networkworld.com/community/blog/exchange-outlook-calendaring-problems-lost-me
 

Exchange 2003:
Microsoft Release Notes - 
http://support.microsoft.com/kb/943721
http://support.microsoft.com/kb/556073
http://support.microsoft.com/kb/894470
http://support.microsoft.com/kb/2768774
http://www.networkworld.com/community/blog/exchange-outlook-calendaring-problems-lost-me
 

Apple:
Microsoft Release Notes - 
http://support.microsoft.com/kb/2563324
http://www.networkworld.com/community/blog/exchange-outlook-calendaring-problems-lost-me
http://www.slipstick.com/outlook/icloud-outlook-problems-syncing-calendar/

Droid:
Microsoft Release Notes - 
http://support.microsoft.com/kb/2563324

MS Mobile:
Microsoft Release Notes - 
http://support.microsoft.com/kb/2222377

Deep Archive Add2Exchange Errors

EXCDO 8206 Calendaring Agent Failed: http://support.diditbetter.com/kb/A2E_174.aspx
EXCDO 8208 Error In Event Log: http://support.diditbetter.com/Forums/Thread.aspx?pageid=1&mid=2&ItemID=1&thread=13&postid=24

Applies To

• Add2Exchange Enterprise
• Add2Exchange Standard
• Add2Outlook
• Outlook 2010
• Outlook 2007
• Outlook 2003
• Exchange 2010
• Exchange 2007
• Exchange 2003

Keywords: Calendaring, Issues, Calendar, Issue