This study attempts to investigate the theoretical flow of the antecedents and consequences of consumer engagement in WeChat Moments advertising. The study explores what features of advertising information on social media mobile applications (i.e., WeChat) are related to consumer engagement with the information and how that in turn influences consumer acceptance of the new advertising practice. Results of the study suggest that consumer engagement is positively affected by perceived interactivity, perceived informativeness, perceived enjoyment, and personal involvement. The study further shows that consumer engagement predicts advertising acceptance. Data also reveals the moderating role of utilitarian/hedonic shopping tendencies in the effects of the features of the advertising. Finally, the study provides a discussion, with theoretical and practical implications, of the mediating role of consumer engagement in the context of social media.