The role of the institutional context in the pattern of the implementation of responsible procurement management (RPM) has been object of very limited previous research, although it has been found that it affects the approach to both CSR and supply chain management. The article presents the results of an in‐depth comparative study drawing on 47 interviews with managers of 13 companies in Italy and Germany, which have been previously related to different national institutional settings. The analysis demonstrates that the perception of factors influencing RPM implementation differs between Italian and German companies, and suggests that the institutional context affects not only the overall CSR behavior of the company, but also its institutionalization into a specific function. Results show that the institutional context mainly determines the boundaries within which practitioners are able to operate, whereas the ability to effectively bring about changes in their activity mainly depends upon organizational environment. Copyright © 2014 John Wiley & Sons, Ltd and ERP Environment