A technician is preparing to pre-stage 15 new access points for the pediatrics wing inside Aruba Central before they ship from the warehouse. Which piece of information about each access point is essential to gather first so the pre-staged record actually matches the physical device on arrival?

Pre-staging a device record in Aruba Central means creating an association between a specific physical unit's unique identifier, its serial number or MAC address, and the group and configuration profile it should receive on first contact, so gathering that identifier accurately before shipment is the essential step that makes the whole workflow function. Without it, Central has no way to distinguish one access point from another or apply the intended configuration automatically when the device calls home. A model number identifies a product line, not a unit, so it cannot distinguish the fifteen identical access points from one another; Central would have no way to decide which record belongs to which box. An address handed out by DHCP is not known until the device is already powered on and cabled, and it can change on any lease renewal, so it is unusable as the identifier a pre-staged record is built around. The upstream switch port describes where a device sits in the wiring, not which device it is; an access point moved to a different port must still receive the configuration that was staged for that unit. The concrete check before shipment is pulling the serial number or MAC address off the packing list or the unit itself and confirming it is entered correctly against the intended group in Central, since a transposed digit means the device never matches its pre-staged profile.