In this workshop, companies and sustainability systems across different industries are invited to learn from each other, sharing what works well in the partnership between companies and sustainability systems, what generates impact and what their ideas are for how this could be and needs to be improved. The goal is to create a space for an open and honest exchange that sparks practical ideas for the future. The start of the working session will have a wide scope, discovering questions about the value proposition of sustainability systems, the current topics for improvement in their effectiveness and the research into the impact of different measures. We will then continue with a more narrow focus on mutual learning and collective problem-solving regarding different elements of the effectiveness of sustainability systems. These elements include for example how sustainability systems are collecting, using and sharing sustainability data and information, among others. We will follow an “Appreciative Inquiry” approach that emphasises the strengths and successes of the partnership between companies and sustainability systems and with this positive focus build motivation, engagement and collaboration. Registration until October 28, 2025.