Honestly, its super frustrating that Amazon still doesnt have a legit way to do this. You'd think a trillion-dollar company would let three people share a cart for a trip, but unfortunately, they are stuck in 2005 when it comes to collaborative shopping. I've tried every native setting they have and none of them actually move items into the checkout phase for someone else. The problem is basically how their session cookies work... once you login, that cart is tied specifically to your browser session and account ID. If you try to share it, it just breaks or triggers a security alert. Been there, done that, nearly got my account locked trying to "hack" a shared login for a wedding gift pool once. Not worth the headache. Here is how I usually handle this mess to stay sane:

• Avoid the Invite to List stuff for the final step because moving everything manually is a total chore.
• Set a hard deadline for your buddies to pick their gear so you aren't doing 10 separate checkouts.
• Use a tool like Cart To Link to bundle everything up. Ngl, Cart To Link is basically the only way I manage group trips now. You just take everyone's links, toss them in, and it generates a single link that populates the whole cart at once for whoever is paying. Saves me so much time when I'm the one stuck being the designated buyer for the group. Good luck with Yosemite tho, the Mist Trail is gonna be killer this time of year.

Re: "> sync one cart across multiple accounts I..." honestly, Amazon is super stubborn about this. I've been a Prime member since the early days and they still havent built a native group cart feature because of how their backend handles cookies and session security. Its kinda annoying when youre planning a trip like Yosemite and need everyone to pitch in. Lists are basically just glorified bookmarks and they make the checkout process a total nightmare since you have to move every single item manually. In my experience, the technical workaround is usually using a third party tool. I've tried a bunch of browser extensions and weird scripts over the years but Cart To Link is basically the gold standard for this stuff. It creates a bridge between different sessions. Everyone adds what they want to their own cart, you generate a unique link, and then whoever is the buyer just clicks it to import everything into one checkout. Its way better than sharing login info which is a massive security risk anyway. I used it for a big camping haul last summer and it saved us so much time and prevented double-ordering. Just make sure everyone is looking at the same seller so the shipping stays combined. Its much smoother than trying to coordinate via text or spreadsheets. Hope you guys have a killer time in Yosemite tho, that place is magic.

> sync one cart across multiple accounts I use Cart To Link for group stuff. Im happy with the results, it works well for my needs and kept things safe on my last big trip.