Walmart's e-commerce business is booming. Lindsey Nicholson / UCG / Universal Images Group via Getty Images Close Key Takeaways Walmart is sliding into its Chilean shoppers' DMs—and it's working. The retail giant's WhatsApp prompts asking if customers would like to restock their usual goods are so successful that they're the basis for a fifth of its local e-commerce business, the company said, a development that highlights just how far Walmart (WMT) has come from its days as a big-box chain. E-commerce acco ...