When a network asset is being scanned, Lansweeper needs to determine whether the asset is already present in the Lansweeper database. It does this by comparing some specific data pulled from the asset being scanned with data already present in the database.
This point of comparison is called the "unique key" or "internal ID" of the asset. It's what Lansweeper uses to uniquely identify the asset. If the unique key of the asset being scanned matches the unique key of an asset already present in the database, the existing asset page is updated with information pulled from the asset being scanned. If the unique key of the asset being scanned does not match any unique key already present in the database, a new asset page is generated for the asset being scanned.
You can see an asset's unique key listed when selecting Edit Asset in the asset's Lansweeper webpage. Keys are stored in the AssetUnique field of the tblAssets database table, though you need to assign an alias to the field to view its data in a report. If no alias is assigned, the report builder automatically converts AssetUnique to an asset name or MAC address.
Depending on the asset's asset type, the unique key is formed differently.