Digitalisation as a success factor of a circular economy

Everyone is talking about the circular economy and there are various market requirements for this concept. Digital tools provide many starting points for finding efficient solutions quickly and effectively. What does this mean? How can I use and evaluate tools for their effects on the circular economy? In which areas are there starting points? What are the conceptual starting points / interfaces between circular economy / digitalisation along the value chain? How can I implement this in my company? And who can help me with this?