3.2.4. License
Experimenting with the Calender widget locally on your PC or within a Mendix sandbox environment doesn't require a license. However, a license is required for a production build.
Additionally, a license is unnecessary when the app is in production but the Calender widget isn't utilized on any pages. In such instances, you can merely provide an empty variable or constant.
Additionally, please refer to our best practice guidelines on maintaining the license key here for further information.