Repair update messages are triggered by TimeZoneMatchCheck failures in Exchange Server

Original KB number:   3019798


In Exchange Server 2016, Exchange Server 2013, or Exchange Server 2010, you receive one or more repair update messages on an iOS 8.x or iOS 7.x device. These messages indicate that the Calendar Repair Assistant (CRA) has updated a meeting.

The body of the message contains the following:

Your meeting was found to be out of date and has been automatically updated.

Updated meeting details:
Meeting Recurrence

Analysis of the CRA logs shows that the TimeZoneMatchCheck process failed:

<Attendee EmailAddress="">
<ConsistencyCheck Type="CanValidateOwnerCheck" Result="Passed">
<Description>Checks whether the counterpart user can be validated or not.</Description>
<ConsistencyCheck Type="ValidateStoreObjectCheck" Result="Passed">
<Description>Calls Validate() on the base calendar item.</Description>
<ConsistencyCheck Type="MeetingExistenceCheck" Result="Passed">
<Description>Checkes whether the item can be found in the owner's calendar or not.</Description>
<ConsistencyCheck Type="MeetingCancellationCheck" Result="Passed">
<Description>Checkes to make sure that the meeting cancellations statuses match.</Description>
<ConsistencyCheck Type="TimeZoneMatchCheck" Result="Failed">
<Description>Checks to make sure that the attendee has correct recurring time zone information with the organizer.</Description>
<Inconsistency Owner="Attendee" ShouldFix="True" Flag="RecurringTimeZone" />
<ConsistencyCheck Type="MeetingPropertiesMatchCheck" Result="Passed">
<Description>Checks to make sure that the attendee has the correct critical properties for the meeting.</Description>
<RUM IsOccurrence="False" Type="Update" Sent="True" Time="DateTime">
<Meeting Subject="Test Recurring TimeZone Meeting" MeetingType="RecurringMaster" StartTime="DateTime" EndTime="DateTime" Organizer="">


The default location for the CRA logs is %ExchangeInstallPath%\Logging\Calendar Repair Assistant.


Meeting repair update messages may appear in the attendee's Inbox 12-48 hours after the attendee updated the meeting on an iOS 8.x or iOS 7.x device. CRA is trying to correct a discrepancy that was introduced by the iOS device to the time zone property of the attendee's copy of the meeting.


This issue has been addressed in the iOS 8.3 update.

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