Typically, you will see a persistent toolbar notification or a console log stating: "CKEditor 5: Your license key is missing or invalid."
Choosing the right path for your CKEditor 5 integration ensures your project remains legally compliant and fully functional. If your project is closed-source or intended for commercial monetization, obtaining a is a critical step in your development pipeline. To take the next steps with your integration, let me know: ckeditor 5 license key