Hi Kavishka,
If you are using licensed installer, then you don’t need to register any license keys. If you are using trial installer or nuget packages from nuget.org, you should register the license key in your application.
https://help.syncfusion.com/common/essential-studio/licensing/overview
We would like to let you know that we will no longer provide support for EJ1 products starting from 2020 Volume 4. You can still use them without registering the license keys. However, we recommend updating your controls to EJ2 products. Please refer to the documentation below.
https://ej2.syncfusion.com/aspnetmvc/documentation/introduction
https://ej2.syncfusion.com/aspnetcore/documentation/introduction
To learn about how to register the license key for EJ2 products.
https://ej2.syncfusion.com/aspnetcore/documentation/licensing/how-to-register-in-an-application
https://ej2.syncfusion.com/aspnetmvc/documentation/licensing/how-to-register-in-an-application
Please let us know any queries on this.
Regards,
Jeyaseelan M