We wanted to demystify the process of syncing and provisioning of various recipient objects in Exchange Online. Some of this content might be already familiar to you but some will be new and will (ho...
Updated Jul 29, 2024
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Demystifying Exchange Online Provisioning: Architecture, Exchange Object Types, and Attributes
ajanes-arc You can simply go to the "Synchronization Rule Editor" in ADSync/EntraIDConect" and check the Rules there.
If you enable "Exchange Hybrid", then the Setup adds additional Rules to replicate exchange properties. Without that checkbox, you will still have the standard properties with the rule "Iin from AD -User Common" and it replicates the exchange Attributes like ExtensionAttribute1-ExtensionAttribute15, mail, ProxyAddresses (and of course al the other normal properties)
Enabling the ADSync Checkbox adds the following rules:
"In from AD - User Common from Exchange"
"In from AD - Group Exchange"
"In from AD - InetOrgPerson Common from Exchange"
"In from AD - InetOrgPerson Exchange"
"In from AD - User Exchange"
And also some outgoing Rules.
These are all listed at https://learn.microsoft.com/en-us/entra/identity/hybrid/connect/reference-connect-sync-attributes-synchronized. But the list contains all attributes and does not separate the attributes which are part of the checkbox