Monday, December 19, 2011

Office 365: Rich coexistence failure because DirSync cannot write back to local AD

DirSync makes it very easy to populate all user account etc from the internal AD to Office 365. Error during exporting and syncing user data are reported via emails, so you can follow up on that.
For rich coexistence DirSync writes certain attributes back to AD, e.g proxyaaddresses.
Errors are not reported and you have to find them in the DirSync's "unofficial" UI.

If you see there "Insufficient access rights to perform the operation.” then the user MSOL_AD_SYNC does not have permissions to write those attributes.
This can happen because you assigned permissions on the user level and you have disabled the "include inheritable permissions from this object's parent" option.

From there you have two options; enable the option to use inheritance or add the permissions manually to each account.

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