If you want to replace the Kaspersky Sandbox license key using the KSC, you must follow the steps to add a license key.
The uploaded key replaces the active license key of the application.
See also
About the license
About the End User License Agreement
About the license certificate
About the key
About the key file
Viewing license information in the web interface
Viewing the text of the End User License Agreement in the web interface
Viewing the text of the Privacy Policy in the web interface
Adding a Kaspersky Sandbox license key using the web interface
Replacing a Kaspersky Sandbox license key using the web interface
Removing a Kaspersky Sandbox license key using the web interface
Adding a Kaspersky Sandbox license key using the KSC
Program modes based on the license