This topic also applies to SolarWinds SCM, which supports Asset Inventory polling.
As described in Manage Asset Inventory in SAM, Asset Inventory polling is automatically enabled for any node that meets Asset Inventory requirements during Discovery. You can also enable Asset Inventory polling for individual nodes.
To enable Asset Inventory polling for a large group of nodes (for example, after you set up third-party software on a group of nodes), run a Discovery to "re-import" the nodes. This will not affect anything currently monitored, but Asset Inventory will be enabled on all hosts it's applicable to during the import process. See Enable Asset Inventory in bulk for details.
To disable Asset Inventory polling across all nodes, see Remove Asset Inventory data collection in the Success Center.