This study aims to examine ERP performance at the post-implementation stage, particularly from the perspective of environmental factors and conducted factors. Specifically, we propose that both environmental factors (including external contexts and internal contexts) and conducted factors (including data quality and customization) affect ERP intermediated benefits (including coordination improvement and task efficiency), which in turn influence the overall benefits. A firm-level survey is used to collected data. Our findings support the proposed hypotheses. We also provide implications for both managers and researchers.