To avoid directory synchronization problems, you'll want to run the IdFix DirSync Error Remediation Tool before you synchronize ...

To avoid directory synchronization problems, you'll want to run the IdFix DirSync Error Remediation Tool before you synchronize your Active Directory to %BRAND_OFFICE_365_SHORT%. You should be comfortable working with user, group, and contact objects in Active Directory when using IdFix. If you're not, consider hiring a consultant to help get your directory synchronized.