"Update UseDatabaseQuotaDefaults to false" error occurs when you change settings of user mailbox in Exchange Server 2016

Applies to: Exchange Server 2016 Enterprise EditionExchange Server 2016 Standard Edition


When you try to change or edit some settings of user mailbox by using Exchange Control Panel (ECP) or running Set-Mailbox Exchange Management Shell cmdlet as an administrator, you receive the following warning message:

Note This issue only occurs in Microsoft Exchange Server 2016 that has cumulative update 5 installed.


This issue occurs because mailbox quota properties aren't handled well.


To fix this issue, install Cumulative Update 7 for Exchange Server 2016 or a later cumulative update for Exchange Server 2016.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.


Learn about the terminology that Microsoft uses to describe software updates.