Meta is under expanded investigation by the Italian Antitrust Authority concerning alleged EU competition law violations involving updated WhatsApp Business terms that restrict AI chatbot providers such as OpenAI and Microsoft from operating on WhatsApp starting January 15, 2026.OpenAI and Microsoft will withdraw from WhatsApp, affecting ChatGPT and Copilot, while Meta states the WhatsApp Business API is intended for customer support and not for third-party AI chatbots.The Italian Antitrust Authority mandates Meta to respond within seven days and considers suspending the new rules, as they may harm the AI chatbot market in the EU.