Buying groceries online for in-store pickup, often called "Buy Online, Pick Up In Store" (BOPIS) or curbside pickup, allows you to shop from a retailer's full digital catalog and collect your order at a scheduled time without walking through the aisles. Most major retailers offer this service through their official apps or websites, frequently providing it for free with a minimum purchase, such as $35. Pickup and Delivery - Walmart.com