I don't use the app, I just use the website. Then visit:

https://www.amazon.com/wholefoodsapp/prime-code

The web was smart. URLs were smart. We've lost a lot moving to crappy user interfaces people have to dig through. I'm have hopes this will get better soon.

Edit: Isn't there trivial fix with scanning a QR in the store that either opens the site or deep-links into the app? This is like 15 minutes of store manager time + one Claude prompt away for the mobile app, I'd think.