As part of the on-boarding process we will ask you to disable your on-premises DirSync. Please follow these directions to ensure you turn off on-premises DirSync and not DirSync in Office 365. 


There are two DirSyncs currently involved in your authentication normally: on-premises, and in Office 365. During the on-boarding step we will ask you to disable the on-premises DirSync. This can be done by going onto the server it is installed on, opening services and disabling Forefront Identity Service Manager.

Please do not disable the Offie 365 DirSync as we will be unable to proceed until it is reactivated, which can take up to 144 hours (Up to 72 hours to disable, and the same again to re-enable).