Introduction: The rapid development of digital technologies has significantly transformed consumer behavior, making social media platforms essential marketing tools. However, there is a notable gap in the literature regarding the combined effects of social media marketing, price promotions, and corporate social responsibility (CSR) attitudes on customer satisfaction and loyalty in e-commerce.

Methods: A quantitative research design was adopted. Data were collected from 761 e-commerce customers in Turkey who are active social media users. Validated scales from the literature were used, and structural equation modeling (SEM) was applied for data analysis.

Results: The findings indicate that social media marketing and price promotions have a significant positive impact on customer satisfaction and loyalty. Attitudes toward CSR positively affect customer satisfaction but do not have a direct effect on customer loyalty.

Discussion: The study enriches the literature on digital consumer behavior by integrating CSR into loyalty models and emphasizing the mediating role of satisfaction. Practical recommendations are provided for e-commerce businesses. Future research is encouraged to explore cultural differences and sector-specific dynamics in social media marketing and promotional strategies.