Manage Distro Groups from Cloud mailbox

One of the downsides to Hybrid Exchange is moving a mailbox to Exchange Online and no longer being able to manage Distribution Groups. One solution I have found allows the cloud mailboxes to login to On-Prem ECP and manage the distribution groups they own from a web browser.

From the Exchange Management Shell On-Prem you will need to create a new RBAC Role and modify the permissions to allow only update distribution group member and add distribution group member.

Now you can add a user to the role group:

The user can then login to the Exchange Admin Center search for the group they own and modify the members:

If they try and modify a group they are not an owner for it will not allow them to save the changes:

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