. Trial keys typically expire after 30 days, causing a license validation message to appear until a new valid key is registered. Common "Fixes" for Trial License Errors Platform & Version Alignment

Syncfusion.Licensing.SyncfusionLicenseProvider.RegisterLicense( "YOUR_KEY_HERE" ); Use code with caution. Copied to clipboard

: Sometimes, registering your trial might extend the evaluation period or provide additional benefits. Look for a "Register Trial" option in your Syncfusion account or in the product.

exactly matches the version for which you generated the key. Syncfusion Are you seeing a specific error code or just the watermark on your components?

If you still see errors, share your (e.g., WPF, Blazor) and error message for specific help.

In Program.cs (of the client project), right after using statements and before await builder.Build().RunAsync(); :