7429 Sync Failures
Problem reported by Robert Simpson - 5/4/2020 at 8:10 PM
My MAPI account stopped sync'ing again today, had to clear my offline cache to get it working again.  I found this in my Sync Failures folder:

19:56:32 Synchronizer Version 16.0.12730
19:56:32 Synchronizing Mailbox 'robert'
19:56:32 Synchronizing local changes in folder 'Inbox'
19:56:32 Error synchronizing folder
19:56:32 		 [80040102-501-80040102-430]
19:56:32 		 The client operation failed.
19:56:32 		 Microsoft Exchange Information Store
19:56:32 		 For more information on this failure, click the URL below:
19:56:32 		 https://www.microsoft.com/support/prodredirect/outlook2000_us.asp?err=80040102-501-80040102-430
19:56:33 Done

6 Replies

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Robert Simpson Replied
Here's another one, the earliest one in the log (dated today 5/4/2020):
17:40:30 Synchronizer Version 16.0.12730
17:40:30 Synchronizing Mailbox 'robert'
17:40:30 Synchronizing local changes in folder 'Inbox'
17:40:30 Uploading to server 'https://mail.xxxxx.com/mapi/emsmdb/?MailboxId=cm9iZXJ0QGJsYWNrY2';
17:40:30 	   1 item(s) changed read-state in online folder
17:40:30 Downloading from server 'https://mail.xxxxx.com/mapi/emsmdb/?MailboxId=cm9iZXJ0QGJsYWNrY2';
17:40:30 SyncMonitor triggered for Inbox (0x80040102)
17:40:30 Error synchronizing folder
17:40:30 		 [80040102-501-80040102-560]
17:40:30 		 The client operation failed.
17:40:30 		 Microsoft Exchange Information Store
17:40:30 		 For more information on this failure, click the URL below:
17:40:30 		 https://www.microsoft.com/support/prodredirect/outlook2000_us.asp?err=80040102-501-80040102-560
17:40:30 Done
The last e-mail I received before sync was lost was around 5:04pm, though I did upgrade the mail server software at 6:20pm, and did not close Outlook during the upgrade.  I did get a sync failure at 6:26pm, then again at 7:13, 7:34, 7:40, 7:55 ... (upgrade finished around 6:30)

echoDreamz Replied
We have this exact same issue I believe.
Tim DeMeza Replied
7429: Same here.  Still have a ticket open.  
Karl Jones Replied
I know you guys are talking about Mapi but i just updated from 7242 to 7429 today and one of my clients has stopped syncing contacts as well as email folders. He only has about 3gb of email  but has lots of folders. and about 950 contacts. He is using activesync and i have gone through removing the profile, cache and recreating and it still won't update fully.

Larry Duran Replied
Employee Post
Hello Karl, sorry to hear you're having that issue.  Can you please open up a support ticket so we can troubleshoot the issue for you.
Larry Duran
Software Developer
SmarterTools Inc.
(877) 357-6278
Karl Jones Replied
I have had more reports now from activesync and IMAP users, i'm trying to work through this before opening a ticket. removing and re creating the profile for activesync users and seeing how that pans out today.
IMAP error is "failed to update headers" in Outlook 2010 also The UID of a message changed unexpectedly...

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