Exchange synchronisation issues

Hi All,

We are using Microsoft office 365 and hosted exchange.

We consistently get the following errors.

Any ideas? ( i have replaced my actual domain with

15:53:51 Synchronizer Version 15.0.4535
15:53:51 Synchronizing Mailbox 'My Account'
15:53:51 Synchronizing Hierarchy
15:53:53 Synchronizing local changes in folder 'Calendar'
15:53:53 Uploading to server ''
15:53:56          1 item(s) updated in online folder
15:53:56          1 view(s)/form(s) updated in online folder
15:53:56 Error synchronizing folder
15:53:56              [0-0]
15:53:58 Synchronizing server changes in folder 'Inbox'
15:53:58 Downloading from server ''
15:54:00 Synchronizing server changes in folder 'Deleted Items'
15:54:00 Downloading from server ''
15:54:01          1 item(s) updated in offline folder
15:54:02 Done
15:54:04 Microsoft Exchange offline address book
15:54:04       0X80190194

I am using windows 7
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Simon Butler (Sembee)ConsultantCommented:
This isn't something that you can resolve yourself. It is an issue with the OAB files and requires direct access to the server. You will need to log a call in the Office365 portal for their support to look at.


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Vasil Michev (MVP)Commented:
If you are getting this on all users in the company go with Sembee2's proposal.

If it happens for few people only, might be the local OAB copy. Try creating a new Outlook profile or simply delete the OAB and see if this changes things.
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