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

EWS source/target connectivity

Exchange Web Services (EWS) are used by the program to connect to source Exchange Server.

You can create several EWS connections in the program. This section describes the most common EWS connectivity issues, with appropriate solutions. Use the links below to learn more.

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