Yes, I have used multiple gift cards at Walmart. I just scanned each one at the self checkout.
But adding them to your Wallet in the Walmart app is another way. However, you are limited to five gift cards.
Dang! That’s a lot to deal with but unfortunately seems on par for the Walmart experience. I had the same thing happen with inventory count where items have been shown OOS while standing next to them in the aisle and having an employee scan them. I like pointing out errors in the store. I have used multiple printed gift cards at SCO because I prefer to cash out my Ibotta earnings as soon as I can and have had overlap between two cards. Can’t do that anymore though. Thanks Ibotta. But I didn’t know about converting to a physical card. Wonder if it’s possible to reload one online? I’d rather do that then deal with customer service. And I don’t want to do the penny thing with Walmart Pay just to get a paper receipt.
I always trade my Swagbucks points for visa or mc egift cards and then I either buy online for egc for Target (and tadd to wallet) or order a physical Walmart gift card with free shipping. My Walmart app holds my gift cards hostage at checkout and behaves like it is empty.