When a mailbox is set to shared the user account becomes disabled. This means that you then cant use the wizard to re-enable the mailbox as the user account isn’t available for selection.
You can use powershell to re-connect this mailbox to the disabled shared mailbox AD object using the below command:
connect-mailbox -database “CCR#\DB#” -id “display name” -shared -user “user account” -domaincontroller “DC Name”
Once domain replication has completed, the mail attributes should be re-associated with the user account.
