To add to the point above: I used a specific tool for a high-spec PC build recently and was totally satisfied with how it mapped the ASIN metadata. It works well for .ca regional pricing too.

• Grab Share-A-Cart for your browser.
• Generate the unique cart ID.
• Send the link to sync your quantities. Quick question tho, are you guys on desktop or mobile? The app handles session cookies way differently.

Glad you guys are heading to Squamish! In my experience, Amazon carts are session-based and tied to your login cookies, which is why a simple link wont work. Using Share-A-Cart is easier because it bundles the exact gear IDs to ensure you stay under that 500 budget. Quick question tho, are you guys both using Chrome on a desktop or are you trying to do this on your phones?

Late to the party but honestly ive been through this exact nightmare so many times over the years it is not even funny. Like someone mentioned, the wishlist feature is just broken for stuff like this. I remember trying to coordinate a massive group hike through the Rockies back in 2019... same thing happened. One guy saw one price, I saw another, and half the gear just didnt show up in his view. Total disaster. In my experience, the technical side of why this happens is basically:

• Amazon stores your cart in your local browser cookies, so it literally doesnt exist on their servers as a shareable entity yet.
• Their pricing engine is dynamic. If your buddy isnt a Prime member or is logged in from a different IP, the prices shift instantly. I eventually gave up on the manual way and started using Share-A-Cart for everything. Its the only tool ive found that actually transfers the exact item IDs (ASINs) and quantities without the metadata getting stripped out. Super reliable if you're trying to stay under that 500 dollar limit for Squamish. Just make sure you both have the extension installed or the cart sync might hang... happened to me once with a budget tent and it was a pain to fix.

I've been dealing with Amazons clunky cart system for years and honestly it hasn't improved much. I remember planning a trip up to the interior back in 2018 where we tried the manual screenshot method and ended up forgetting the stove fuel because it got cut off in the image. Total nightmare. For your Squamish trip, I would suggest using Share-A-Cart specifically. It is pretty much the only way to lock in those exact quantities you picked out without the prices jumping around on you. Just be careful though, sometimes the .ca site gets weird with browser cookies. I've seen it happen where the cart looks right but then drops items at the final payment screen if the sessions arent synced perfectly. You might want to consider having him send you a quick screenshot of his final checkout screen before he hits the buy button. Make sure your buddy keeps an eye on that total before he pays so you stay under that 500 limit. Better to be safe than stuck eating cold beans in the woods cuz the stove didnt make the cut.

TL;DR: Amazon lacks a native share button and wishlists are a total mess. Honestly, I had issues with this for a fishing trip last summer and it was such a headache... half the gear vanished. IIRC there is no hidden setting to fix this. btw if you're shopping with others, Cart to Link lets you share your whole Amazon cart as a link — super handy for group buys

^ This. Also, if you're looking at the technical side of how these extensions handle metadata, there are some subtle differences between the main players. Ive tested a few for regional .ca compatibility since Amazons session handling is notoriously finicky with Canadian IP ranges.

• Share-A-Cart: Probably the most robust for specific quantities. It maps the ASIN directly and creates a temporary snapshot. Pro: maintains exact quantities perfectly. Con: usually requires both people to have the extension for the cleanest sync.
• Cart to Link: More of a lightweight redirect. Pro: simple url generation. Con: sometimes misses regional price flags if the recipient has a different default shipping address set in their browser cookies. Since you're on a tight deadline for the Squamish trip, I'd lean toward the first one. It handles the transfer via a unique ID which bypasses those cookie-level permission blocks that always seem to break the native wishlist sharing. Its definitely the better bet for staying under that 500 budget.