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The License Manager automatically assigns an activated license to a server that needs a license.
When do I need to assign a license?
Stacking licenses can improve the polling capacity of your polling engines. You can assign up to four polling engine licenses to one server.
Each polling engine can poll a specified number of elements at the default polling interval. After reaching the maximum number, the polling interval is prolonged. To maintain the default polling interval, assign an additional license to the same polling engine. See Scalability Engine Guidelines for your product in the SolarWinds Success Center for more information about extending the monitoring capacity.
The polling engine is now using the license.