Hidden spaces or newline characters copied from an email can invalidate the key. It is best to paste the key into a plain text editor (like Notepad) first to strip formatting before moving it into your code. 4. Expired Subscription
Store the key in or Azure Key Vault and fetch it at runtime. Desktop Apps (WPF/WinForms) xceed.words.net.licenser.licensekey
Ensure every service utilizing the library has the Licenser property set. ⚠️ Troubleshooting Validation Errors Hidden spaces or newline characters copied from an