Exchange 2013: Load balancing failed to find a valid mailbox database

When you create a new Mailbox, you may get the following error:

Error: Load Balancing failed to find a valid Mailbox Database

as shown below:

 

Workaround

When you create a new mailbox, you must select the database.

Fix

To fix this, run the following:

PS > Get-MailboxDatabase | Set-MailboxDatabase -isexcludedfromprovisioning $false

The IsExcludedFromProvisioning parameter has have two valid values, $True and $False. When you set this property to $True, the mailbox database is excluded from the automatic distribution process. When you set it to $False, the mailbox database is included in the automatic distribution process. The default value is $False.

 

https://technet.microsoft.com/en-us/library/ff477621(v=exchg.150)

 

Thanks for reading! You can follow me on Twitter @PrigentNico