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Note that removing license servers is an asynchronous process. Deleting large sets of data or overcoming limitations of architecture performance (for example, resulting from hardware setup) may cause the license server removal to take longer than usual. Any errors that occur when removing license servers are listed in the Error Log grid in the Dashboard, as described in Error information.
Caution: When you remove a license server from License Statistics, all the license usage data for that server is removed from the database. If you do not want to remove the data, you may want to hide the server instead, as described in Controlling visibility of license servers and features.