Software helps companies to become more efficient and productive. But increasingly, the focus is on more sustainability and CO2-reductions by means of smart software. We discussed the issue of sustainability through software with our member companies Celonis and Delogue. While Celonis from Germany specializes in process mining, Delogue from Denmark offers a platform for the fashion and apparel industry. Together with Lisa Herrmann, Head of Sales and Partnerships DACH at Delogue, and Teodor Bjurling, Solution Engineer at Celonis, we addressed the following topics: Why are most company processes and supply chains not sustainable; Data transparency as the key to more sustainability; Implementing change and where to start.