This study explores the impact of social
capital on decision-making and satisfaction among
young Indonesian TikTok users, analyzing how its
different dimensions—structural, relational, and
cognitive—affect decision confidence, comfort, and
satisfaction. Utilizing PLS-SEM to analyze data from
326 participants, the findings reveal that structural
social capital were not significantly influence decision
confidence or comfort, indicating that mere
connectivity lacks psychological impact. Similarly,
relational components like trust in peers and
reciprocity showed no significant effects on decision
confidence and comfort, while identity with social
groups notably boosts consumer decision confidence.
Conversely, cognitive social capital, particularly
shared language, substantially enhances both decision
confidence and comfort, underscoring the critical role
of mutual understanding in social commerce. This
research, the first of its kind to assess the influence of
various social capital aspects on decision comfort and
confidence, offers new insights into how social capital
shapes consumer behavior and satisfaction, providing
valuable implications for improving user engagement
on digital platforms