["Corporate Social Responsibility and Environmental Management, EarlyView. ", "\nABSTRACT\nSustainability assessment advances corporate social responsibility toward inclusive development. Widely recognized approaches prove inadequate for micro, small, and medium enterprises (MSMEs), resulting in fragmented proliferation that hinders cumulative knowledge. Through a systematic review of 82 articles, this study reveals convergence around attributes defining a sustainability assessment—multidimensionality, internal coherence, normalization, systematicity, and transparency. The synthesis consolidates indicators into a thematic core aligned with global standards, indicating institutional convergence and advances in credibility. Yet participation is largely absent, leaving salience partially addressed and legitimacy fragile. The analysis identifies a hybrid logic: a stable thematic core supporting credibility, coupled with a participatory periphery that, if substantively engaged, enhances the legitimacy required for transformative knowledge. This theoretical–empirical synthesis provides a scaffold for future research, positioning sustainability assessment within Pasteur's Quadrant as use‐inspired knowledge that integrates rigor with the capacity to transform systems and reduce unsustainability.\n"]