Employees of sales departments of apparel makers play an important role in the success of a fashion-related business because they provide service through the direct contact with customers. This research tests several hypothesized relationships between internal marketing and its determinants, such as job satisfaction and organizational and job commitment, along with sales goal orientation. The subjects in this study were salespeople who worked at fashion stores in Yeosu and Sunchon. To measure the hypotheses, 200 questionnaires were handed out and 185 were collected. Finally, 163 questionnaires were used for the analysis, as 22 were found to be invalid. Frequency analysis, factor analysis, reliability analysis, and multiple regression techniques were used after coding and cleaning the data with the software SPSS 18.0. It was found that job satisfaction in the subjects is affected by organizational and job commitment and by their sales goal orientation. Second, it was found that both organizational and job commitment have a significant impact on sales goal orientation. According the results of this study, the higher the salesperson`s job satisfaction, the higher the organizational and job commitment are. This was also true for their sales goal orientation. Moreover, higher organizational and job commitment was correlated with a stronger sales goal orientation. On the basis of the results, marketing strategies related to personal management can be established.