Is anyone here knowledgeable about the Fare/Tariff basis codes used when Air canada tickets?
I'm trying to decode the following. OBP00AFC/AE4
Thanks!

You need to specify origin and destination. Also, is this something you've already purchased or something you're looking at buying?

DEL-FRA in F
Originally booked as an redemption.
Due to aircraft type change, I was downgraded to J.
After some HUCA I got rebooked to DEL-ZRH-FRA in F.
My worry is that the fare basis code doesn't match the fare classes for the 2 segments (F & J) and I won't be able to fly.

O is the correct fare bucket for Star Alliance F redemptions so the fare basis looks fine. Make sure the ticket number on your latest confirmation has changed from the original to verify it's been reissued. You can also manage your booking on the operating carriers site to check if it's booked in the correct class.

Not sure what the current state of cowtool is but if it's running, that's the first place to validate ticket status.

Thanks, I just double checked the ticket numbers from the original aeroplan booking and the new confirmation after the change. The ticket numbers have changes so its a new ticket number now.
On the websites it also shows the 2 segements as First (F) and Business (J) respectively. On the electronic ticket receipt pdf is says:
Ticket validity
Booking / Ticket Status
Confirmed / Open for Use
Not valid before
Not valid after
17 April

My main concern is that this seems to be rebooked onto revenue fare? Yet it says Tariff: OBP00AFC/AE4
Since the fare basis starts with O, is that not a mismatch? Apologies if I'm completely off, not sure how it's supposed to work.
AFAIK, LX cannot be booked as a partner award so this has to be revenue. But I was booked on AI originally before the aircraft swap downgraded me to J.