The aim of this research is to analyze the influence of social presence on brand loyalty through functional value resonance in automotive consumers. This is a quantitative research approach. The purpose of the study includes automotive consumers in North Sumatera, Indonesia. The sample selection method is non-probability sampling, which does not ensure that every member of the population is sampled equally. In this study, purposive sampling was used with 205 respondents. Data is analyzed using the Partial Least Squares (PLS) approach using SmartPLS. The results of this study show that social presence had a positive and significant effect on brand loyalty for SUV automotive consumers in Medan City. Functional value resonance positively and significantly affects brand loyalty for SUV automotive consumers. Brand loyalty is influenced favorably and significantly through functional value resonance in automotive SUV consumers. Increased resonance of functional values can be achieved by companies by giving the impression that causes echoes from users associated with the value of SUV functions, such as improving the quality of reliable engines and creating security features so that they do not compete with competitors.

The rapid digital transformation of healthcare organizations has increased the use of managerial applications to improve leadership effectiveness and service quality. This study examines the effect of managerial app use on the performance of nurse managers, with user satisfaction and technostress proposed as potential mediating variables. Grounded in the DeLone and McLean Information System Success Model and Task–Technology Fit theory, a quantitative cross-sectional design was employed. Data were collected from 308 nurse managers across five government hospitals in North Sumatra, Indonesia, and analyzed using SEM-PLS. The findings indicate that managerial app use has a significant positive effect on individual performance, user satisfaction, and technostress. Both user satisfaction and technostress also positively influence performance; however, neither variable mediates the relationship between system use and performance. These results suggest that performance improvements are driven primarily by direct system utilization. Notably, technostress may function as a challenge stressor that enhances performance under manageable conditions. Overall, the study emphasizes the strategic role of digital systems in strengthening managerial effectiveness, decision-making quality, and organizational outcomes. It also offers practical insights for hospital leaders managing digital transformation initiatives and optimizing human–technology interaction in complex healthcare environments to support sustainable healthcare performance.

The digital transformation era has profoundly altered how small and medium-sized enterprises (SMEs) compete, particularly those in traditional industries. This study examines the relationship between second-order digital marketing and purchase intention, emphasizing the mediating role of e-service quality in Ulos-based SMEs in North Sumatra, Indonesia. Digital marketing is conceptualized as a second-order construct composed of cost efficiency, incentive programs, interactivity, and site design, reflecting the multidimensional nature of digital strategies. Data were collected from customers of Ulos SMEs who had engaged with online platforms through a structured survey. The measurement and structural models were tested using Partial Least Squares Structural Equation Modeling (PLS-SEM). The results confirm that digital marketing significantly affects its four dimensions and positively predicts e-service quality. However, the direct effect of digital marketing on purchase intention was insignificant. Instead, e-service quality strongly affects purchase intention and mediates the relationship between digital marketing and purchase intention. The model explained 54.6% of the variance in e-service quality and 65.9% in purchase intention, indicating substantial explanatory power. The findings contribute theoretically by validating digital marketing as a second-order construct and clarifying the mediating role of e-service quality, thereby addressing prior inconsistencies in the literature. Practically, the results underscore that SMEs, particularly in cultural industries such as Ulos, must integrate service quality with digital marketing to convert exposure into purchase behavior. This study highlights how balancing cultural authenticity with digital innovation enables heritage-based SMEs to achieve sustainability and competitiveness in the digital economy.