Best to ask Alexa support from amazon.ca -- or if you have an Echo Show 8, just say, "Alexa scan this item." If the camera turns on and you put something with a barcode in front of it, then you know it works. If Alexa says something like, "I don't know that one" then it's not yet available for Canada.
I don't know if many people know this, but you can ask your Echo device to call Amazon customer service. Just say, "Alexa, call customer service." I assume this would connect you to the customer service in the country/region where your Amazon account is set up.