A wide range of studies in Enterprise Systems (ES) has been conducted in recent years. These studies often address the lack of appropriate in-house Enterprise Systems knowledge and the need to manage ES-related knowledge. In so forth, organisations realise the need to better leverage their knowledge resources. However, it often not clear what this ‘knowledge’ is, what type(s) of knowledge are relevant and who possess this knowledge. This paper is based on previous research, which categorized six types of knowledge based on a comprehensive literature review. Based on this classification, an analysis of the dominating ES implementation tool, ValueSAP, has been conducted. Further insights into the expected knowledge and skills have been derived from this vendor-specific viewpoint. The results provide perspectives on the expected contributions of the different members in an Enterprise Systems project.