Electronic exchanges of information between Businesses have continued to grow. The question of data quality has always been understood to be an important area of research; but after 40 years, there is still a lack of research dealing with the quality of data exchanged between organizations. Even if the literature recognizes that Interorganizational Information Systems (IOSs) use can improve data quality, no research analyzes in depth how data quality can be improved by the implementation of an IOS. In this paper, we aim at understanding the contribution of electronic catalogues to data quality improvement in electronic data exchanges. Emerging from an exploratory case study of data flows between retailers and manufacturers in France, our results show that electronic catalogues can contribute to the improvement of several data quality dimensions.