ABSTRACT
In the era of digitalization, the development of social media have changed the way people communicate. The role of social media are becoming more critical in the workplace environment, especially for millennials’ employees. It is essential for organizations to take advantages from the relationship between social media and millennials to enhance their performance. Many believe that social media have a lot of potentials to help employees in their work but also damages their users with some adverse effects such as work pressure and exhaustion. This study extends the literature on the effect social media use on organization, particularly in millennials generations, by proposing a model and validating the positive and negative effect of social media on millennials’ work performance. Thus, this research also examines the role of narcissism personality (as a characteristic of millennials employees) toward social media use at work. This research collected 226 respondents from millennials employees in Indonesia through online survey. The Partial Least Square Structural-Equation Model (PLS-SEM) has been used to analyze the data. Using SPSS and SmartPLS software, the results indicate that (1) there is a positive significant indirect connection between social media and work performance through social capital (network ties, shared vision and trust) and knowledge transfer; (2) there is a significant relationship between social media use and millennial’s narcissism personality; and (3) social media have a substantial connection with the negative effect, such as work pressure and exhaustion even though these negative effects have no significant relations with the millennials’ work performance.