I just saw this and man, I feel your pain. I've been doing the grocery run for my family for over a decade now and it's honestly ridiculous how hard they make it. No, you aren't missing anything obvious... Walmart just doesn't have a shared cart feature because they honestly don't care about the user experience.

• The syncing issues are a total nightmare. I've lost count of how many times I thought I was under budget only to find out the app lagged and I spent fifty bucks more than I planned.
• It is such a scam how high prices have gotten while the quality of the apps and the service just tanks.
• Companies these days just want your money without providing the basic tools to make shopping manageable for a household. In my experience, it used to be so much simpler, but now we're stuck shouting across the house like you said. Its exhausting trying to keep a tight budget when the tech is actively working against you. Over the years I've realized these big stores really dont care if we struggle with their apps as long as we keep paying.

Walmart actually lacks a dedicated shared cart feature. Dont worry tho! I love using these methods to stay under budget:

• Shared Login: Seeing the live price is amazing! Just remember to refresh to avoid lag.
• Shopping Lists: Fantastic for organization. Stable. It just wont show the checkout total. Methodical planning is honestly the best way for big hauls!

Honestly, it is super disappointing that a company as big as Walmart has such poor session management in their app. I tried doing the same thing with my brother last month and we ended up with way too many snacks because the cart didn't update in real-time on both screens. Basically, their API doesnt handle concurrent writes well, so when he added something, my local cache didnt reflect it until I manually pulled down to refresh or restarted the app entirely. It is a major technical oversight for a multi-billion dollar company. Unfortunately, since their backend is so clunky for this, I have had to look for third-party workarounds. I actually started using this Chrome extension on my laptop to help manage lists across different sites when the native apps fail me. It helps keep things synced better than the official Walmart mobile interface which is just... buggy. If you are stuck on mobile, you really have to wait like 30 seconds after one person adds an item before the other person sees it, or you will keep getting those annoying conflict errors. It is so inefficient, ngl.

^ This. Also, the consensus from everyone here is pretty spot on—the app just isnt built for two people to be active at once. Honestly, the way Walmart handles session tokens means when your husband adds something, your app still thinks it has the "correct" version of the cart from two minutes ago, and they just clash. Its super annoying when you are trying to stay under that $250 limit. Since you have been doing this long-term and need to watch every penny, I wouldnt trust the app total until the very last second anyway. I usually keep a side tally or use something like QVC price tracker if I am cross-shopping deals, though for Walmart specifically, a shared Google Keep note is probably your best bet for the prep work. Basically, dont drive yourself crazy trying to make the sync work. Just have him text you his list or put it in a shared note, then you do the final clicking. It avoids the double-order headache and keeps the price tracking accurate in one spot. Its not high-tech, but it saves the stress of the app glitching out right before you hit pay.

There isnt a native shared cart feature, and in my experience, the technical architecture of the Walmart app just isnt designed for concurrent sessions. Last month, my wife and I tried to do a quick 15-minute sweep and ended up with three gallons of milk because the state didnt update on my end until I hit the final payment button. Looking at how the app handles data, it seems their API has some serious latency issues when two people hit the same account ID from different IPs. Honestly, the server-side validation is just slow. I've mostly given up on the native app for the planning phase and started using Walmart Wishlist Creator instead. It manages the items way better and doesnt get those weird session conflicts that cause the app to crash or lose items. Learning the hard way that trying to force the app to behave like a real-time collaborative tool is just gonna lead to overspending... stay away from the simultaneous login trick if you're on a strict budget.

Been thinking about your budget situation because my wife and I have the exact same struggle trying to stay under our limit every month. Basically the Walmart app just isnt built for real-time collaboration like a Google Doc or something. What we started doing instead of fighting the syncing errors is using a simple shared list app on our phones first. We use one where we can both add stuff throughout the week and it keeps everything in one place without the app crashing. I know it sounds like an extra step but it actually saves us so much stress. We build that master list together and then when we are ready to actually buy, I take about ten minutes to just search and add everything from that list into the Walmart cart myself. Since only one person is actually adding items, the total stays accurate and the app doesnt glitch out or lose things. Its way more reliable than trying to have two people logged in at once because like you saw, the session usually breaks when you both try to save changes at the same time. Doing it this way means you can see the final price right before you hit checkout and swap things out if you go over your $250 budget without the headache.

Building on the earlier suggestion, I have had the exact same issues trying to stay under our grocery limit. Its honestly so disappointing that a company this big cant figure out a basic sync. We tried the one account trick last week and the cart just kept dropping items or showing the wrong total, which is a total nightmare when you are on a strict budget. Honestly, I have found that using the desktop site on a mobile browser instead of the actual app is slightly more reliable for price updates, tho it is still buggy and not as good as expected. Since we are all trying to save every penny, I actually started using PriceDropCatch to track when the staples we buy go on sale. It is not a shared cart, but at least it helps keep the total down since Walmarts own app is basically useless for real-time collaboration. Just super frustrating that we have to jump through these hoops just to buy essentials without going over our budget...

Works great for me