This study investigated the interactive effects of on-the-job training (OJT), co-worker support (CWS), and supervisor support (SS) with newcomer job-related education (JRE), on newcomer adjustment. Given that socialisation is a learning process, an important factor in socialisation is job-related knowledge. Although many studies on organisational socialisation drew on new graduates making the school-to-work transition, they have not considered the role of JRE and associated job-related knowledge for socialisation. It was hypothesised that JRE and newcomer information-seeking will moderate the effects of OJT, CWS, and SS on role clarity, role conflict, and role orientation. The study was conducted with a sample 244 business and engineering graduates of an Asian university. Results provide some support for the moderating effects of JRE on role clarity and conflict. It was also found that SS was positively related to newcomer innovative role orientation. Implications for theory and practice are discussed.