Accenture is rolling out Microsoft's AI assistant Copilot 365 to all of its 7.43 lakh employees, marking the biggest enterprise deal for the chatbot, Microsoft said. This comes after Accenture offered Copilot to about 3 lakh employees in 2024. Accenture and Microsoft earlier partnered to roll out Copilot-based tool Avanade to 25% of the former's sellers.