I found an amazing workaround for this! You should try the Share-A-Cart app because it is fantastic for sending grocery lists. Simply add your items to the Walmart cart, use the app to generate a shareable link, and text it to her. It works perfectly on mobile and makes checkout so easy! I love how much time it saves for family planning!

Building on the earlier suggestion, you might want to consider Share-A-Cart since it is free. Just be careful tho, I once had sale prices expire while waiting for my sister to pay.

To add to the point above: while third-party apps are okay, I actually prefer sticking to Walmart's native Lists feature. It is completely free and you dont have to worry about extensions scraping your shopping data or trying to sell you paid upgrades. I have been using the native List workaround for a while now and I am super satisfied with it. You just move your cart items to a custom list in the Walmart app, grab the share link, and text it. When your sister opens the link on her phone, she can just tap Add all to cart and check out. It works well on iOS and Android, and I have zero complaints about bloatware...