Once you're in your account, click on 'Walmart Purchase History' In Purchase History, you'll be able to see your order details, which include your order number.

Visit Walmart.com or open the Walmart app. Enter an item in the Search bar at the top of your screen. On the Search results page, filter by how and when you want to get items: Need it fast: use this filter to show items that are available today, tomorrow, 2-days, or anytime.

Edit Items in an Order You can edit any other orders for items sold by Walmart while they're being prepared. During your edit window, you can: Add or remove items. Increase or decrease quantities.