How do I purchase online and have the person pick it up

Go online order your stuff fix it for pickup and you have a number and the person who picks it up a little give them the number and they'll bring your groceries to you go to walmart.com and then from then on they will send you sale things

If you download the Walmart application on your smartphone or go to walmart.com on any computer you can select your purchase and during checkout you can select store pick-up. Then you just go to the customer service desk in the store and let them know you have an online order and they will go and retrieve it for you (they will usually have it ready for you behind the counter) also there may be a confirmation or order number for to copy down or take a picture of so take that in with you.