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Cloud Services Thread, Office 365 - DirSync Duplicate attributes in Technical; Hi, We have just been migrated from Live@Edu to Office 365 (almost 40,000 users). I have two problems; The most ...
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    Office 365 - DirSync Duplicate attributes

    Hi,

    We have just been migrated from Live@Edu to Office 365 (almost 40,000 users).

    I have two problems;

    The most worrying is the sheer number of this warning that I am getting,

    Unable to update this object because the following attributes associated with this object have values that may already be associated with another object in your local directory services: [UserPrincipalName name@mydomain.com;]. Correct or remove the duplicate values in your local directory.

    I have had so far in 8 hours, 336 emails each with 30 accounts (some of these may be duplicate reports, with that many its hard to tell)

    Can anyone advise how I can resolve this, ideally without losing the mailboxes that may already be in place.....

    2nd problem;
    Given that I have 40,000 accounts, and DirSync falls over after 5000, how am I supposed to sync ?

    Thanks
    Mike

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    robk's Avatar
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    Have you contacted ms support? I seem to remember they have to make some changes for dir sync on a large domain. I could be wrong though.

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    If you have more than 50,000 objects in your local AD (that's objects, not just users - run the deployment readiness tool to determine the number) then you should contact Microsoft Support to get your DirSync object limit raised.

    As you've come from Live@edu did you run the preparation scripts as part of the upgrade? (Assuming you were using ILM beforehand)



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