This study examines the impact of internal and external green supply chain management on consumers’ environmentally friendly purchase behavior. Green supply chain management (GSCM) has emerged as a key approach for enterprises seeking to become environmentally sustainable. This study targets all sectors to investigate the impact of internal and external GSCM on consumers’ environmentally friendly purchase behavior. This paper proposes to study and emphasize GSCM practices and their impact by using quantitative methods. Responses were collected from different organizational sectors and analyzed by 50 people using regression and CFA. Internal and external green supply chain management positively impacts consumer purchasing behavior.