Originally Posted by canopus27

yyz-kin I think what you're missing is that on Air Canada, the booking code alone (the letter - N in your case) no longer defines the product. Cabin, fare brand, and fare class are separate constructs.

• The cabin (Business / Premium Economy / Economy) is the primary driver for upgrades
• Then comes your status; not relevant in this conversation
• Next is the fare brand / family (Standard, Flex, Comfort, Latitude, etc.). The fare brand controls things like refundability (etc) but also has an impact on the upgrade cost, and the upgrade priority.
• The fare class (booking code)(Y, B, J, N, etc.) is mostly just an inventory bucket and is intentionally reused across multiple fare brands, so a “B fare” by itself is ambiguous on AC.

In practice, upgrade priority is determined first by cabin, then fare brand, with fare class serving mainly as a secondary sorter (along with status and time of request) - all as described in the Wiki.

This is why we keep asking you what cabin you purchased - and then secondarily, what fare brand. The letter (N) is only important after you consider those details.