Do the Nintendo Switch Online codes that come with Switch purchases have a expiration date as in do you need to redeem it before a certain date?

I believe it is two years since the launch of the title.

EDIT: Sorry, I misread the post, thought you were talking about the coin rewards with games.
Not sure how long the Switch Codes last for? They might last until the eShop service is active.

https://www.amazon.com/ask/questions/Tx28ZLTL6Z01P4O/#:~:text=The%20code%20won't%20expire,still%20be%20available%20for%20purchase.

https://www.nintendo.co.uk/Support/Nintendo-Switch/Do-Download-Codes-Expire--1379034.html
https://www.nintendo.co.uk/Support/Nintendo-Switch/Do-My-Nintendo-Download-Codes-Expire--1480283.html
https://en-americas-support.nintendo.com/app/answers/detail/a_id/16558/~/do-my-nintendo-download-codes-expire%3F

EDIT3: I believe this guy got a similar answer
https://www.resetera.com/threads/do-nintendo-switch-online-codes-have-an-expiration-date-like-the-ones-received-in-switches-when-you-buy-them.334136/

Lmao , love how you posted my thread on ERA for the same question.

Thanks! Yeah it doesnt show any expiration - I just wanna finish my run of Super Mario Odyssey before I redeem the code so I can take advantage of the NSO NES and SNES games.

Jejejeje, it was one of the first links that came out related to the NSO expiration xD

BTW, congrats on your Switch purchase with 20 games to boot!! Which did you get?

Thanks!

27* now and I'm done with the purchasing for now (though I'm going to get the Fire Emblem game that comes out next month).

-Mario Kart 8 Deluxe (as a code for buying the Switch)
-Super Mario 3D All Stars (this is my first Switch game but I bought it back in September)
-Super Mario Odyssey (bought this along with my pro controller - Amazon had a bundle which made both $10 off)
-New Super Mario Bros U Deluxe
-Super Mario Maker 2
-Yoshi's Crafted World
-Luigi's Mansion 3
-Mario Tennis Aces
-Super Mario Party
-Mario + Rabbids Kingdom Battle Gold Edition
-Donkey Kong Country Tropical Freeze
-The Legend of Zelda Breath of the Wild
-The Legend of Zelda Link's Awakening
-Hyrule Warriors Definitive Edition
-Kirby Star Allies
-Pokemon Lets Go Pikachu
-Pokemon Sword
-Xenoblade Chronicles Definitive Edition
-Xenoblade Chronicles 2
-Xenoblade Chronicles 2 Torna The Golden Country
-Fire Emblem Three Houses
-Fire Emblem Warriors
-Tokyo Mirage Sessions #FE Encore
-Super Smash Bros Ultimate
-Marvel Ultimate Alliance 3 The Black Order
-SEGA AGES Phantasy Star
-Ultra Street Fighter II

Nice start, not bad at all, that will keep you busy for sometime!

.@nintendo Switch will have an amazing Nov/Dec, breaking records again. Not sure? Take a look at their shipments by weight according to ImportGenius .... lots of timing issues but Oct up 116% YoY (3m av 30% YoY). Supply has improved massively but it is snapped up by consumers pic.twitter.com/Qr8kVxe1YO

— David Gibson (@gibbogame) November 28, 2020

When you add hardware sell-through numbers for each month to that graph, it becomes apparent that there is no consistent correlation between weight and console sales.

NS weighs about 300g in the box and all so that weight shipment would be a shipment of around 1.16m units for the US alone.

You mean units as in Switch systems?