If you previously had SilentAccountConfig enabled, then you will see no difference in behavior.

This new capability will replace our existing Windows policy of SilentAccountConfig and is brand new for macOS. If OneDrive is running in the background, it will periodically try to sign in with an existing AAD credential that is made available to Microsoft applications. We will begin rolling out in mid-June and expect to complete by late July. This message is associated with Microsoft 365 Roadmap ID 93242. On macOS, users who are signed into another Microsoft app (i.e., Office, Teams, Edge, etc.) will see their OneDrive folder start syncing without entering their account credentials.

On Windows, users who are signed into the device with an Azure Active Directory (AAD) account will see their OneDrive folder start syncing without entering their account credentials.

Users will experience an improved single sign-on experience by automatically being able to see their OneDrive files within their file browser upon sign in or OneDrive app update.

This release will enable the OneDrive sync app to sign into an account even quicker.

Reconfigure onedrive for business mac