Our hybrid environment has Exchange 2010 SP3 with O365. Our room mailboxes are on-premise. When users in the cloud create a new meeting and use the on-premise room mailbox as a resource, it shows up as tentative. When users that are on-premise create a new meeting, it's automatically accepted as it should be. When cloud users create meeting in a cloud based room mailbox, it's accepted automatically. Is there a fix for this?