This study attempts to investigate the antecedent factors of trust and its impact on online social shopping purchase intention among Generation Z in Malaysia. This study also seeks to explore the mediator role played by trust in online social shopping purchase intention. The data was collected through an online questionnaire and was analysed using Partial Least Square Structural Equation Modelling technique and SEMinR statistics software package.  Other than eWoM, the findings indicate that both social presence and logistics service quality have a significant impact on consumers’ trust, which leads to online social shopping purchase intention. The findings also reveal that logistics service quality has a greater impact on trust than social presence. Meanwhile, in the presence of trust, both social presence and logistics service quality have an indirect effect on online social shopping purchase intention. Since eWoM is found to have no significant impact on trust, thus, trust does not mediate the relationship between eWoM and online social shopping purchase intention. The findings of this study provide an alternative view on factors influencing trust building among Malaysian Generation Z consumers., as well as the mediator role played by trust. The study does not only extend our understanding of these factors but also contribute to the body of knowledge in this area. Practitioners and marketers may benefit from these findings by developing a social shopping system that is coupled with an effective marketing strategy to build trust among their consumers.