Based on short introduction into the e-portfolio method, this contribution focuses on experiences and challenges for adult education: For that, it describes best practice, current projects and initiatives in European adult and continuing education. Additionally, the results of interviews with experienced adult educators who have already worked with the e-portfolio method will be referred: The interviews focus on competencies that educators need, if they are working with the e-portfolio method. In a short outlook, requirements for a future professional development and training for e-portfolio trainers in adult education will be sketched.