Hi Magdy,
Thanks for contacting Syncfusion support.
Please find below response for your queries.
Syncfusion have Unlock Key and License Key. Both are used for different purposes. Refer the following KB article to find the difference between Syncfusion “Unlock Key” and “License Key”
License key
Our License keys are version and platform-specific. If you are using Syncfusion NuGet packages from nuget.org or assemblies from trial installer, corresponding version and platform’s license key should be registered in your project to avoid trial licensing warning.
Please refer this documentation to know more about licensing
You can generate the license key for the required version by referring documentation below.
Also for your information, all the referenced Syncfusion assemblies\NuGet packages in your project might be on the same version as license key version.
Unlock key
Syncfusion Unlock key is used to unlock the Syncfusion installers. The unlock keys are version-specific and corresponding version unlock key should be used to unlock the specific version of product.
Refer this KB article to generate the unlock key for Essential Studio products.
Let us know if you’ve any other queries.
Regards,
Kalap Johnson Peter P.