Thanks for joining the conversation, PJSenter! Serial numbers let us tell individual units apart from one another, so we require it for registration. Please give it another try and let us know if you need any additional help!
So that the Community can help you better, we need to know exactly which Canon device you're using. That, and any other details you'd like to give will help the Community better understand your issue!
If this is a time-sensitive matter, click HERE search our knowledge base or find additional support options HERE.
Also, make sure you are registering your device at our official MyCanon site: canon.us/account.
Thanks and have a great day!
Thanks for letting us know. We just attempted to register a dummy version of that same model and we weren't prompted for a serial number, either. We'll let our web development team know about this. In the meantime, you can hold off on registering as your warranty doesn't really depend on it. If you should need service, registration will be required. We hope you won't need that but if you do, we hope to have this little wrinkle ironed out by then.
Thanks for calling this to our attention!
12/05/2023: New firmware updates are available.
09/26/2023: New firmware updates are available.
08/18/2023: Canon EOS R5 C training series is released.
07/31/2023: New firmware updates are available.
05/18/2023: New firmware updates are available.
03/30/2023: New firmware updates are available.