The purpose of this paper is to identify the critical soft factors affecting the successful implementation of enterprise resources planning (ERP) in Egyptian manufacturing companies. The data analysed in this paper were collected from a questionnaire mailed to 100 manufacturing companies that implement ERP system in Egypt. The manufacturing companies are coming from three different industries: Automotive, Leather and Chemical industries. The questionnaire was directed to production, human resources, and maintenance managers. The findings of this study indicate that Training and User support has a weak impact on the successful implementation of ERP in Egyptian manufacturing companies because training programmes are not efficient for ERP systems. Additionally team support has a negative impact on the successful implementation of ERP teams decrease performance of people and they have weak relationships. Finally, avenues for future research are recommended, such as the applicability of the proposed scale which will require further on different countries and types of industry.