Change Contact Information "Offline" of a Shared Mailbox in Outlook Web

[itmanager___]

Morning

 

I have a weird one today, our School Office want to know why their mailbox (Shared Mailbox) is showing up as Offline.

 

Office team would like staff to know that they are "Online".

 

Is there a setting in O365 Admin portal, which I need to change?

 

Any input greatly appreciated.

 

[NegativeKillDeath]

A shared mailbox has an underlying user that doesn't log on so the presence will show offline. Ours show status unknown.