PIECES is a non-profit organization dedicated to education for children in developing countries through volunteering initiatives. It was founded in 2009 by Swiss students from the University of St. Gallen. After volunteering abroad as part of their Master curriculum, the group of student thought of this project. PIECES has now evolved into a gathering of 9 board members, advisory board members and more than thirty active members. To coordinate collaboratively the activity of the organization, the team chose to use Slack. Prior to this, they were operating through WhatsApp, which was not the most adapted app to separate personal and professional topics.