Sustainable management integration for reworking of faulty products provides long-lasting benefits. There are situations in global business when the products are purchased from a global supplier. There are chances that a fraction of defective goods can be in the lot earned. These defective goods are still important to save the world and can be fixed.Repairing faulty products in a nearby repair shop is affordable when contrasted with sending them back to the retailer. The cost of carbon emissions is also integrated into the effect on net income for the environment. The supplier, meanwhile, also offers the buyer a multi-credit-period.We built a sustainability model in this paper and are raising the effect on the climate. This paper seeks to optimize overall benefit by simultaneously considering multi-credit strategy, rework, scarcity, transportation costs, creating a synergic economic order quantity model.This model can help in making decisions to enhance sustainable inventory management efficiency by controlling the cycle time for a global supply chain. This also draws numerical comparison to provide organizational insights into actual procedures.