QBDBMgrN is a process that runs as part of the QuickBooks Database Server Manager. QuickBooks Database Server Manager is a utility provided by QuickBooks that enables multiple users to access a company file stored on a server or host computer. QBDBMgrN is responsible for monitoring the QuickBooks company files that are stored on the host computer and allowing other users to access them over the network.

The “N” in QBDBMgrN stands for “network”, which indicates that it is designed to manage QuickBooks databases that are shared over a network. QBDBMgrN not runs in the QuickBooks  background as a Windows service, meaning that it starts automatically when the computer is turned on and runs continuously until the computer is turned off or restarted.