E-learning sustainability depends on students’ post-adoption evaluations of platform performance, information quality, usefulness, satisfaction, and continued use. This study examines students’ continuance intention toward institutional e-learning systems by integrating the Technology Acceptance Model and the Information Systems Success Model. A quantitative explanatory survey was conducted with 470 students from five Indonesian universities. Data were analyzed using covariance-based structural equation modeling with IBM SPSS and AMOS. The final model showed excellent fit (CMIN/DF = 1.036, CFI = 0.999, TLI = 0.999, RMSEA = 0.009). The results reveal that information quality was the dominant driver of perceived usefulness (β = 0.824, p < 0.001) and also significantly improved perceived ease of use (β = 0.321, p < 0.001). User satisfaction strongly predicted continuance intention (β = 0.612, p < 0.001), while perceived usefulness substantially increased satisfaction (β = 0.475, p < 0.001). By contrast, system quality had only weak effects on perceived ease of use (β = 0.164) and perceived usefulness (β = 0.072), and perceived ease of use had a negligible effect on satisfaction (β = 0.019). These findings show that sustained e-learning use is shaped primarily by the quality and academic value of information rather than by technical functionality alone. The study refines TAM–ISSM integration by identifying a clear information quality–usefulness–satisfaction–continuance pathway in post-adoption settings. Universities should therefore prioritize relevant, accurate, well-organized, and timely learning content, while maintaining reliable system performance, to strengthen student satisfaction and long-term engagement.
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