Honestly, i've looked into the architecture for the walmart app several times and its unfortunately a huge letdown for anyone who wants basic sharing functionality. You're not missing anything; the share button just doesnt exist in the app for the cart itself. It's not as good as expected for a company that size, especially when you consider how easy it would be to implement a deep-link generator for session sharing. The technical reason is that walmart ties your cart items to a specific account GUID and a temporary session token that is not public-facing. Even if you tried to grab a URL from the mobile web version, it usually just redirects to a blank cart for anyone else because they handle state strictly on the server side without encoding the item IDs into the URI. Since you are on a tight deadline and a 200 dollar budget, you should try these inefficient alternatives:

• Move everything to a List: share the link from there.
• Screenshot the summary: it's messy but fast.
• Shared login: let them log into your account on their device. I had issues with their sync last week where my entire cart cleared out during a simple app update, so i dont trust their session management at all tbh. It is really disappointing that we have to jump through these hoops for basic coordination. It's not the most data-efficient way to handle things but with your tonight deadline, you're stuck with manual workarounds.