Open Source Software (OSS) is a growing phenomenon, changing the way in which Information Systems (IS) are developed, distributed and implemented. The success of OSS in the worldwide market for operating systems, web servers, and other infrastructure software is substantial. However, it is still infrequent in ERP type application domains, which are said to be impossible to design from an OS angle. While a significant number of research investigate aspects of OS, few researches were dedicated to OS ERP. Based on a review of the academic and professional literature, this paper aims to improve our understanding of the current influence of OS ERP in organizations, to provide a new light on a previously developed topic and to challenge the conventional wisdom in our field which stipulates that there are some areas like ERP applications where OS could not be developed.