Considering the growing competition and increasing attention toward productivity and cost reduction among firms, quick access to pertinent information has become a competitive advantage for them. Relying on this up to date information, they can reduce their costs by decreasing their inventory, speeding up material flow, taking consumer view in to account etc. in this study we investigate the relationship between enterprise resource planning (ERP) system and supply chain management where Oracle Purchasing Module implemented in Zob Ahan enterprise. Statistical population of the study is operational employees of Zob Ahan enterprise in Isfahan and the sampling method is simple stochastic. Required data is gathered through a questionnaire and we use SPSS and SmartPLS in order to analyze them. Findings of this research indicate that ERP Components including Integration, Material management, Production planning, and controlling have positive impact on supply chain management.