This study investigates the role of strategic marketing innovation in enhancing competitive advantage within the context of the digital economy, particularly among small and medium enterprises (SMEs) and digitally active firms in Indonesia. The primary objective is to examine how the adoption and implementation of innovative marketing strategies influence key performance indicators such as customer loyalty, market reach, and brand differentiation. Using a descriptive quantitative research design, data were collected from 150 businesses across various sectors through structured online questionnaires. The instrument measured the types of marketing innovations adopted, perceived organizational capabilities, enabling and inhibiting factors, and the outcomes of innovation on competitive advantage. Descriptive statistics and Pearson correlation analysis were employed to identify relationships between variables. The results reveal a strong prevalence of digital marketing innovations, especially in the use of social media, content personalization, and customer engagement automation. Respondents reported significant improvements in brand visibility, customer retention, and market responsiveness. Marketing capability and digital literacy emerged as key internal enablers, while limited financial resources and skill gaps were identified as primary constraints, particularly among micro-enterprises. Statistically significant positive correlations were found between marketing innovation and competitive advantage indicators, validating the theoretical proposition that innovation functions as a strategic capability. These findings contribute to the literature on marketing strategy and digital transformation by highlighting the mechanisms through which innovation supports sustainable competitive positioning. The study also offers managerial implications for enhancing internal capabilities and fostering innovation culture in digitally evolving business environments.