Canada Post Xpresspost Flat Rate offer - "local" and "national" rates are not what they sound like
I have been using the express post flat rate promo and offering it as a flat rate based on what I thought was local and National differentiations, but have found out that it is based on rate codes and not just postal codes/regional location I somehow got the only person that Canada Post that could have given me a direct answer about this on the first call so wanted to share this because it is so vaguely worded and it is resulting in a bunch of overcharges on orders for me.
The eligibility is based on what is considered local via rate code, so you need to be able to look up rate code eligibility based on the origin postal code. I found out because I've had two orders from thunder Bay which is 13 hours away from me in Winnipeg, and they are qualifying for the local price break but not the national price break. Local is 2.5 kg for 6.xx and National is up to 5 kg for $12.
Here are the links, hopefully someone can use this, I don't know why this wasn't disclosed or at least made available through API use so that it would automatically come up instead of having to be invoked manually through snapship, therefore making it impossible to accurately quote unless you already know these rate codes, and these pages are buried on Canada Post site. Hope it helps someone. If it helps you upvote so other people will see this thread.
https://www.canadapost-postescanada.ca/cpc/en/tools/rate-code-table-lookup.page