Microsoft 365


Active Directory


Windows Server


Chance to win $250 in Petri 2023 Audience Survey


Exchange Online

Microsoft 365 Changelog

M365 Changelog: (Updated) Configuration Change in Name parameter for Exchange Online

Rabia Noureen


MC365786 – Updated June 28, 2022: Based on customer feedback, Microsoft has made the decision to provide additional time for organizations to prepare for the change. The company has updated the rollout timeline below. Thank you for your feedback.

Microsoft is making some changes to the way Name parameter is being set in Exchange Online. The company will be making a change to utilize unique ExternalDirectoryObjectId (EDOID) in the place of Name parameter in Exchange Online only.

When this will happen:

We will begin rolling this out in early September (previously late June) and expect to complete late October (previously late August).

How this impacts your organization:

After this change administrators may no longer be able to see subsequent CN value change in Exchange on-premises to be reflected in the object’s Name property in Exchange Online.

The updated naming logic would take effect only during new user creation. Existing users won’t get impacted in any way.

Please note that since Microsoft will start using EDOID as Name in Exchange Online, it shall stop allowing changes in CN to reflect in Name property in Exchange Online for all users (both new and existing).

What you can do to prepare:

Microsoft recommends that Administrators evaluate any scripts or other automation that may rely on the Name property and update them accordingly.

For additional details please refer Change in naming convention of user’s Name parameter.

Article saved!

Access saved content from your profile page. View Saved