What is the Sage 50 Connection Manager?

https://medium.com/@accountspros/troubleshooting-sage-50-connection-manager-download-issues-ad67e282c72e

The Sage 50 Connection Manager controls requests from Sage 50 and third-party software, allowing connection to a company data file in a multi-user environment. It allows secondary user access to the database so they can make changes in real-time to the main data file.