eDiscovery in Hybride Mode

Hi All,

In Exchange Hybride Mode. I created a remote shared mailbox from my Exchange 2019 on-prem by the following command :

New-RemoteMailbox -Shared -Name "Test" -Firstname "Test" -LastName "TEST" -UserPrincipalName "email address removed for privacy reasons" -RemoteRoutingAddress "email address removed for privacy reasons"

To check if the remote mailbox are well included in the eDiscovery on premise, I created a search by using "Search all mailboxes" parameters but there is no result found from the shared mailbox.

Do you know if there is a way to use eDiscovery (on prem or cloud) to have all results from all mailboxes cloud and on prem, in one command ?

Thank you for your help