This study aims to develop a website-based information system integrated with social media to enhance the promotional effectiveness of Sosoxewa Fruit Seedling MSME in Makassar. The research employed a Research and Development (R&D) approach using the ADDIE model, consisting of analysis, design, development, implementation, and evaluation stages. The website was developed as a product catalog and business information center integrated with a Facebook business page. Evaluation was conducted using the System Usability Scale (SUS) and digital marketing performance metrics. The results show that the website achieved a SUS score of 81.43, indicating excellent usability. Digital performance data also demonstrate increased visibility, reflected in 12,693 organic content impressions, 1,664 website clicks, and a 5.3% engagement rate. These findings suggest that integrating a website-based information system with social media strategies effectively improves promotional reach and accessibility. The study implies that structured digital integration can support sustainable marketing development for small businesses.
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