How to differentiate between the Unlock key and Licensing key in Miscellaneous Configuration?

The unlock key and the license key are used for difference purpose.

Installer unlock key

The unlock key is used to install the Syncfusion offline installer and the key starts with ‘@’ ends with ‘=’.  All Syncfusion installers require the unlock key or Syncfusion account which generate the unlock key to install on your machine. If the key is invalid, it will not allow to install. The unlock key can be generated from the License & Downloads section of the Syncfusion website.

Refer the screenshot for applying the Unlock key.

Licensing Key

Syncfusion has been introduced the licensing system from the version 16.1.0.41. License key is just a string that should be registered in the application before any Syncfusion control is initiated.

The Syncfusion license key needs to be registered in the application to prevent the licensing popup from appearing when using the assemblies and packages from the trial installer or nuget.org. 

The License key can be generated from the License & Downloads section of the Syncfusion website.

Refer the Licensing help document to register the licensing key in different platform applications.