Azure AD Connect Migration - How to clear ImmutableID of Distribution Group?

TIR74-9219 1 Reputation point

We need to migrate Azure AD connect from a Forest to a new Forest while using the same O365 Tenant. There are several posts here and elsewhere explaining the steps and I was able to follow these steps in a Lab and migrate User accounts. It seems removing the Immutable ID is the key to not have duplicate accounts.

My question is how can I remove the Immutable ID of a Distribution Group? Is this possible? I found the Distribution group is duplicated when re-enabling Azure AD Connect Sync on the new Forest, which must be because of the Immutable ID. I know there are powershell commands to see and clear the Immutable ID for a O365 User account - is there a command to clear it for a Distribution Group?

Thank you All!

Microsoft Entra ID
Microsoft Entra ID
A Microsoft Entra identity service that provides identity management and access control capabilities. Replaces Azure Active Directory.
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