Migration from Exchange Web Services to Microsoft Graph

steps to enable microsoft graph for delegation features to migrate delegated mailbox and calendar functionality from exchange web services ews to microsoft graph, complete the following steps upgrade email+ to version 5 5 0 or later update the email+ app configuration to enable microsoft graph support note do not remove any existing ews related configuration keys during the transition enable the graph api feature by adding the following value to the key value pair enabled features configuration graph api before enabling the graph api feature flag and configuring the microsoft graph kvps, ensure that email+ version 5 5 0 or later is installed on user devices enabling this feature on earlier versions is not supported configure the microsoft graph settings email graph host=graph microsoft com msal graph resource scope=https //graph microsoft com/ default msg min allowed auth mode=modern auth realtime notifications protocol=1 deploy the updated configuration to managed devices through your uem/mdm console verify delegated mailbox and calendar functionality after deployment to ensure microsoft graph connectivity is working as expected email+ will use microsoft graph api for delegated mailbox, shared mailbox, delegated calendar, and shared mailbox calendar functionality