cd-error dir synch

i have that error for 15 user can someone help why i see i have this issue when i synch.

Mark SoultchAsked:
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Marwan OsmanCommented:
please send the error information
Mark SoultchAuthor Commented:
Vasil Michev (MVP)Commented:
You have not extended the schema with the (latest) Exchange related attributes. Read here for more info:

Just in case this is related to some non-exchange attribute, check the event logs to find the parameter name.
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Marwan OsmanCommented:
that is why I asked you to send the error information, please check it out in the below link:

Extend the schema by running

setup.exe /PrepareSchema /IAcceptExchangeServerLicenseTerms

Prepare the domain by running

setup.exe /PrepareAD /OrganizationName:YourExchangeOrgName

Mark SoultchAuthor Commented:
i have office 365 dirsynch i believe that is not the appropiate solution....
Marwan OsmanCommented:
Did you check the error in the link ? They mentioned the same error and it is also for office 365

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