Before adding a new queue to a QoS map and deploying it from vManage, which configuration must be completed first?

Before a new queue can be used in a QoS map, it must be associated with a hardware queue on the specific device. This mapping is done via a Local Policy in vManage, under the "lists" section, where you define QoS maps and their corresponding classes and queues. QoS policies, especially those related to shaping and queuing, are typically applied to the WAN interface because this is where traffic exits the device and where bandwidth constraints are most relevant. Applying it to the service-side interface would affect traffic entering the device, which is not the primary goal of egress QoS. Centralized policies are used for traffic steering and access control across the overlay, not for local interface-specific QoS queue mapping.