This study analyzes the influence of ease of use and security on customer satisfaction with the mobile banking services of Bank Sumsel Babel Syariah, particularly among students of the Faculty of Islamic Economics and Business at UIN Raden Fatah Palembang. Using a quantitative approach, data were collected through questionnaires from 100 respondents. The results indicate that ease of use does not have a significant effect, while security has a positive and significant impact. Collectively, ease of use, security, and trust contribute 78.5% to customer satisfaction variability. The study recommends enhancing security systems and usability of the mobile banking application, as well as educating customers on safe usage practices.

As technology rapidly advances, the internet and social media have become an integral part of everyday life. Social media, which has evolved significantly since the Web 2.0 and 3.0 eras, plays a crucial role in communication and marketing. In this context, Bank Syariah Indonesia utilizes social media as a marketing tool to reach customers, particularly the millennial generation, who are highly reliant on digital technology. This study aims to explore the application of social media in the marketing of Islamic bank products and how brand image influences customer decisions. The use of social media platforms such as Instagram, Facebook, Twitter, and TikTok allows the Islamic bank to introduce products and expand its market reach more efficiently. Furthermore, the research indicates that marketing through social media significantly influences consumer purchase intent and strengthens brand image. The bank's brand image is also influenced by product quality, responsive customer service, and the company's reputation, all of which contribute to increased customer trust. With the right digital marketing strategy, the Islamic bank can enhance operational efficiency, strengthen its market position, and provide better services to customers.

This study aims to determine how much influence Service Excellent and Relationship Marketing have on Customer Satisfaction of PT Bank Sumsel Babel Syariah KC Palembang. The population in this study amounted to 5239 customers with incidental sampling method using the formula obtained a sample of 100 respondents. This research uses quantitative methods, primary data which is then processed using IBM SPSS 25. The T test results show that service excellent has a significant effect on customer satisfaction, relationship marketing has a significant effect on customer satisfaction, service excellent and relationship marketing have a joint effect on customer satisfaction. Proven by the coefficient of determination of 63.8% while the remaining 36.2% is influenced by other variables.