The purpose of this research is to explore how a stakeholder interaction perspective can add to the understanding of the dynamics of the process of corporate social responsibility (CSR) development in retail buyer–supplier relationships. Firstly, we find that interaction with suppliers and other stakeholders seems to have a pivotal role in the development towards sustainable retail supply chains. Secondly, and by addressing the phases of initiation, implementation and maturation of CSR development, we find that the role and intensity of interaction in stakeholder interaction changes over time and that the salience of particular stakeholders can be pivotal in the phases of the process of CSR development. Thirdly, we find that there is not necessarily one active and one passive party in the stakeholder interaction. Although suppliers in developing countries are typically asked to follow codes of conducts of retailers, suppliers are also acting and taking initiatives, and organizing themselves to better meet the demands on CSR.