Last-Minute Tips for Generating Stellar Online Holiday Sales

3. Don’t sell out … get the merchandising basics right. Inventory management is one of the biggest areas where online retailers can stumble in their quest for greater revenue. Make sure a product is in stock if you're promoting it. According to Bloomberg, only Amazon got it right this year by being almost fully stocked with toys while big-box retailers including Walmart, Target and Kmart all had inventory shortages as early as Dec. 9. If you’re one of those advertisers who still has plenty of inventory to sell, make sure your ads and messaging emphasize that.