PT. COCA-COLA Pekanbaru is one of company engaged in the soft drink industry, is located on highway Bangkinang mile 9, which is number 1 Pekanbaru. The company`s main activities are the manufacture of soft drinks and the marketing effort. The purpose of this study is to determine the cause of failure to achieve sales product volume of PT. COCA-COLA Pekanbaru. This study began on January 2012 by…