Our main objective is to contribute to the development of professional competences of staff involved in the validation of prior learning (VPL). We are therefore developing a competence development offer for validation professionals that can be connected across Europe. The competence model and the Self-Evaluation Tool developed in PROVE will give validation practitioners orientation about important competences for their validation practice as well as competences that possibly should be further developed. The Learning Tool Kit offers a variety of learning resources in order to do so. By this means, validation experts will get access to high quality learning and teaching materials for their professionalization that can be used without legal copyright issues as so-called open educational resources (OER).