You can route an assignment to a work queue that is shared by users with the same role in your application. By sending an assignment to a group of users, you can ensure that a task in a case is processed by the next available user.
Open a flow by searching for it or by using the Application Explorer.
On the Diagram tab of the Flow form, double-click an assignment to open the Assignment properties dialog box.
Configure the routing options for the assignment to use a work queue.
Click Submit to close the Assignment properties dialog box.
Click Save.