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Customer satisfaction and consumer loyalty are critical issues in modern marketing management, as they play a strategic role in retaining customers and increasing company profitability. With the increasing intensity of business competition, it has become crucial for scientists and practitioners to understand the components that influence customer satisfaction and their impact on loyalty. The purpose of this study is to systematically review the relationship between customer satisfaction and consumer loyalty, as well as to identify the main determinant factors.The research questions are: (1) What are the most influential factors affecting customer satisfaction and loyalty? (2) How is the relationship pattern between satisfaction and loyalty based on previous research findings?. A systematic literature review was conducted using articles from Google Scholar and Publish or Perish (PoP) with keywords consumer satisfaction, consumer loyalty, service quality, price, and customer trust. A total of 27 articles published between 2020 and 2025 were analyzed, and 5 relevant articles were selected for in-depth review. The findings indicate that product quality, service quality, price, trust, and brand image are dominant factors influencing customer satisfaction and loyalty. In conclusion, future research can explore digital and technology-based service contexts as well as more complex mediation and moderation relationships to deepen understanding of customer satisfaction and loyalty.

Marketing strategy is a fundamental aspect that must be considered in order to achieve predetermined marketing objectives. This strategy encompasses a series of steps and decisions taken to promote products, reach the right target market, and influence customer purchasing behavior. The purpose of this study is to identify the strategies employed by the Mhira Cake Birthday Cake Shop in every sales or promotional activity to attract customer interest, as well as to analyze these strategies from the perspective of Islamic marketing principles. This research is classified as field research, in which the writer directly visited the location—Mhira Cake Birthday Cake Shop—to obtain accurate data, employing a qualitative research approach. The primary informant in this study was the owner of Mhira Cake, while supporting informants included the shop’s customers. Data collection techniques included observation, interviews, and documentation. The collected data were then processed and analyzed using a descriptive qualitative method. The results of this study show that Mhira Cake employs marketing strategies through product, pricing, promotion, and location. The marketing methods used include offering affordable prices for the products sold. From the perspective of Islamic economics, it can be concluded that the marketing strategies implemented by Mhira Cake are in accordance with Islamic marketing principles. The shop operates its business based on values of honesty and fairness and applies characteristics aligned with Islamic marketing ethics. Additionally, in practice, the business incorporates ethical business conduct by demonstrating the traits of shiddiq (truthfulness), amanah (trustworthiness), tabligh (transparency in communication), and fathonah (wisdom). The business is run with a commitment to integrity in every aspect.

The behavior of digital wallet users in Indonesia depends on individual preferences, user habits, and other factors. Consumers' decisions in using digital finance applications are influenced by various factors, including digital marketing, the quality of electronic services and the brand image of the digital finance applications they use. This research aims to determine the influence of digital marketing, electronic service quality and brand image on consumer decisions to use the OVO application in the Jabodetabek area. The method used in this research is a quantitative method that is associative. Data was collected using a questionnaire distributed via Google Form to 155 respondents who used the OVO application. The sampling technique uses purposive sampling. Data processing in this research used the IBM Statistical Package for the Social Sciences (SPSS) ver.25. Based on the results of hypothesis testing, it shows that: (1) digital marketing variables have a positive and significant effect on consumer decisions to use the OVO application (2) electronic service quality variables have a positive and significant effect on consumer decisions to use the OVO application (3) brand image variables have a positive and significant effect on consumer decisions to use the OVO application and (4) digital marketing variables, electronic service quality and brand image together have a significant influence on consumer decisions to use the OVO application.