Add Zonos API Support for Canada Post Carrier Accounts so we can resume US labels thru Shipstation

I just wanted to leave this here because I spent 1-2 months contacting ShipStation support across 4 different tickets with 4 different support agents and none of them were able to fully understand my issue or give me any real answers. They all just kept trying to get me to setup a Zonos store integration or some kind of DPP automation rules. You don't need to do ANY of that! I even had two different support agents tell me that this was not possible.

If you are attempting to use Canada Post along with ShipStation to send packages from Canada to the US and correctly connect your Zonos account, YOU NEED TO HAVE ShipStation's "Standard" subscription. If you are on the "Starter" plan (like I was), you are unable to "Bring your existing carrier accounts" and you are therefore unable to connect your Zonos account key. This is what every single support agent failed to point out to me and I ultimately had to figure this out myself. Once you have a Standard subscription, you need to sign up for a "Verified" Zonos account and follow the instructions under the "ShipStation" tab here:

https://zonos.com/docs/postal/shipping-via-posts/zonos-and-canada-post/verified-accounts/connect-your-account-key

Make sure you are signed into your business account on the Canada Post website before following the instructions above. Even after that, I had to try those steps 4 different times because it kept giving me an error. I think I ended up disabling ShipStation's default Canada Post carrier option which seemed to get it to work. Eventually it will succeed and you will see your Canada Post account listed. Congratulations you can now print US-bound Canda Post labels and pre-pay duties using Zonos (oh boy!).

SHIP STATION: PLEASE MAKE A SUPPORT ARTICLE ABOUT THIS SO THAT PEOPLE LIKE ME DON'T WASTE 50+ HOURS OF THEIR TIME :)))) ❤️