A Walmart store in Arkansas. (Photo via Wikimedia Commons) Walmart has announced layoffs that will impact more than 1,500 corporate roles, including many in its technology and advertising business units. The pink slips will affect workers across Walmart's technology businesses, including its advertising unit called Walmart Connect and its e-commerce departments. The Wall Street Journal was the first to report on the layoffs. Many of the positions affected are based in California, where Walmart operates a technology hub. SF Gate, a website affiliated with the San Francisco Chronicle, said documents filed with state regulators indicated more than 100 employees will be let go in California. The layoffs come several months after Walmart closed on its $2 billion acquisition of smart television maker Vizio, a move that was intended to bolster its retail-focused advertising business.