E-commerce has grown rapidly in the last couple of years and has gotten more demanding customers that want better and more consistent product information. With more products on the market than ever, spreadsheets are not enough. Product Information Management (PIM) systems have been developed to meet those needs. Because these systems contain a lot of different processes and handles a lot of data, they can be complex and contain usability problems. The purpose of the study is to understand and explain the usability of the PIM system process of enriching products. The study answers the research questions: “How do the users experience the usability in the process of enriching products in PIM systems?” and “What are the main usability problems in the enrichment process in an existing PIM system?”. The result shows that the overall usability in the enrichment process is good and the investigated PIM system is easy to use and is flexible. The analysis shows that the main usability problems are the lack of functionality and efficiency. The two problems are connected to each other as the users need to do workarounds because the lack of certain functions. The efficiency would be improved if the missing functions were added. These usability attributes can be difficult to evaluate before the system has been used for a while because it can take time for the users to discover problem regarding them.