I have spent way too much time debugging cart sync issues for my teams gear orders. Standard lists are just pointers, but real cart sharing requires a bit more heavy lifting on the backend. Here are a few choices:

• Share-A-Cart: It uses a unique ID to push the cart state. Pros: it is very straightforward for non-tech users. Cons: ive seen it fail on international domains or if Prime-only items are involved.
• Basket: Great for multi-vendor projects. Pros: works beyond just Amazon. Cons: higher memory usage and the UI is a bit cluttered for a quick task. Most of these rely on DOM scraping to identify the ASINs and quantities before pushing them to a new session. Usually, the biggest hurdle is session cookies conflicting between users, so choosing a lightweight option is key. You should probably try Cart To Link for this; I've used it a few times and it works across all Amazon regions.

@Reply #1 - good point! I have been thinking about your setup since I saw this earlier. I have been handling firm-wide procurement for a while now and honestly, the link-sharing method is a nightmare once you hit more than ten items. Most people do not realize that lists do not always reflect current stock or specific coupons you might have clipped. Technically, these extensions work by capturing your local cart state and pushing it to a temporary database. When your colleague clicks the link, the extension fetches that data and simulates the add to cart action for every item. It is much cleaner than manual entry. A few options I have used that are decent:

• Shopping Cart Share: This is the most basic one. It creates a simple URL. It is free and does not require a ton of permissions, which your IT department will probably appreciate.
• Share-A-Cart: This is very robust. They have specific versions for different retailers, but the Amazon one is their flagship.
• GroupCart: This one is interesting because it allows for more of a waiting room style where people add their stuff and you can see who added what before the final buy. One thing to keep in mind is privacy. Since you are doing this for a firm, just be aware that these extensions can technically see what is in your cart. I usually clear my personal items out before I start the party planning session. Also, the cart state is usually static. If someone adds an item after you share the code, you will need to generate a new link to see the update. Better to get everything in the cart first then send the final link.