This manual refers to an old version of CodeTwo Office 365 Migration. Go here if you use the latest version.

This version of the program uses EWS to connect to Office 365 (Exchange Online). To continue using the program, make sure EWS is enabled in your tenant and the CodeTwo migration app is included in your EWSAllowedAppIDs list. See this article for instructions

Office 365 connectivity

To connect with Office 365, CodeTwo Office 365 Migration needs to be registered in the Entra ID (Azure AD) of each tenant that is used in the migration process. Once registered, the application uses Microsoft Graph and Exchange Web Services to access mailboxes and perform the migration. Follow the links below to read about most common problems related to Office 365 connectivity and find out how to solve them:

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