I had and issue where O365 Share Mailboxes disappeared after a minute or so. After a bit of googling, I found this solution Configure one of the following registry subkeys as...
Archive - October 2023
So according to Sage’s website, they no longer support Windows Server Essentials as an OS of choice… even for the DataService. This is really strange, considering Sage Accounts 50 is aimed at Small/Medium Businesses...