We were migrating the asset data from our existing in house software to Manage Engine tool. The plan was we will upload the Network Devices (Routers/Switches) details via import and thereafter use network scan, so that reconciliation happens automatically based on the serial number, like it happens for PCs/Desktops. But we can't find Manufacture Serial number field while doing import and I wonder how to proceed further for asset migration for network devices. We can see only the Org Serial Number which cannot be used for this purpose.