Even though Companies have used to focus on maximizing the facility rates of operation to enhance their competitiveness and increasing employees' productivity to accomplish the price and quality control, they no longer can make their business successful in these days. To be successful in increasingly competitive environment, it is essential to capture customers' needs and to reflect customers' needs in their production scheduling system. This paper describes that manufacturing scheduling method using TOC in SCM environment to change companies-oriented manufacturing scheduling to customer-oriented manufacturing scheduling.