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This research has a purpose to determine the effect of online transaction security on purchasing decisions through the Shopee application. The respondents consisted of 74 students from the Digital Business Study Program at Universitas Amikom Purwokerto who actively use Shopee. This research employed a quantitative descriptive method with simple linear regression analysis. The results indicate that online transaction security has a positive and significant effect on purchasing decisions, with a regression coefficient of 0.887 and a significance value of 0.000. The coefficient of determination of 35.2% shows that transaction security contributes to purchasing decisions, while the remaining percentage is influenced by other factors. The higher the level of security perceived by consumers during online transactions, the greater the likelihood of making a purchase. These findings highlight the importance of improving security systems and information transparency on e-commerce platforms such as Shopee to create a safe, comfortable, and trustworthy shopping experience for users.

The purpose of this study was to see how promotions and live streaming features impact the decision of Shopee users to purchase fashion products in the 2022 intake. This quantitative study involved 54 respondents from a population of 117 students selected through a simple random sampling method. Primary data were collected through online questionnaires and analyzed using multiple regression using SPSS. Validity, reliability, classical assumptions, and hypothesis tests were also conducted. The study shows that students of Economics Education, Sebelas Maret University, 2022 intake significantly choose fashion products because of promotions and Shopee's live streaming features. Promos are considered to be able to save consumer spending, thus increasing interest and enthusiasm for transacting through the Shopee application. Meanwhile, the live streaming feature makes it easier for consumers to see products directly, assess quality, and make purchases more practically. As for further researchers, it is recommended to add other variables (for example, consumer trust), compare with other e-commerce platforms, use mixed methods, analyze different user segments, and examine the long-term impact on brand loyalty.

 In an era full of technological developments, various daily activities are connected with the help of the internet, making operations easier and faster. One use of this technology, for example, is massive marketing activities carried out via social media, one of which is WhatsApp. This application introduces WhatsApp Business features specifically designed to facilitate the marketing of their products to consumers. This increase in the number of WhatsApp users opens up more opportunities for businesses to maximize the application's potential as a digital marketing tool. The aim of this research is to determine the effect of promotions and services via WhatsApp on sales. This type of research is quantitative research. The sample used in this research was 37 people using the questionnaire distribution method as a data collection tool. The analysis technique used in this research is multiple linear regression analysis using the SPSS software application. The research results show that variable X1 (promotion) and variable X2 (service) each influence variable Y (sales) in a positive direction. Besides that, variables X1 (Promotion) and X2 (Service) in the model together are able to explain 40.3% of the influence on variable Y (Sales).

In this era of globalization, business organizations must continue to improve the level of professional services in their respective fields. The use of PLN Mobile in the customer service department at PLN ULP Medan Baru has the potential to provide significant benefits in improving service quality and customer satisfaction. This application is expected to bring positive changes by providing easy access to information for customers regarding billing, blackouts, and other important information. The purpose of this research is to analyze the customer service and benefits of PLN Mobile at PLN ULP Medan Baru. This study uses a qualitative approach to explore an in-depth understanding of the benefits of using PLN Mobile in the customer service department at PLN ULP Medan Baru. A qualitative approach allows researchers to understand customer perspectives, views, and experiences in depth and contextually. Based on the results of the research and discussion conducted by the researchers, it can be obtained that the customer service and benefits of PLN Mobile at PLN ULP Medan Baru are quite good and very useful for customers at PLN ULP Medan Baru, Medan City to meet their electricity needs, complaints and complaints, however, socialization that has not been evenly distributed has resulted in there being PLN ULP Medan Baru customers who have not used the PLN Mobile application. The five dimensions of customer service used by researchers according to Tjiptono (2014: 18), namely the Tangibility, Reliability, Responsiveness, Assurance, and Empathy dimensions at PLN ULP Medan Baru are quite good.  

The purpose of this study was to examine the impact of work motivation variables on employee performance at PDAM Tirta Langkisau. to examine the impact of competency variables on employee performance at PDAM Tirta Langkisau. Collecting data by distributing questionnaires to 50 respondents using saturated sampling technique, in which all members of the population are sampled, using instrument testing (validity test and reliability test), descriptive analysis, classic assumption test (normality test, multicollinearity test and heteroscedasticity test) multiple linear regression and t test, with the help of the SPSS application. The results of the study show that work motivation has a positive and significant effect on employee performance at PDAM Tirta Langkisau, competence has a positive and significant effect on employee performance at PDAM Tirta Langkisau. Which means the first hypothesis is accepted and the second hypothesis is accepted.

The purpose of this study was to examine the impact of attractions and facilities on the decision to visit Halal Tourism in Padang City. This type of research uses quantitative methods. Data collection through distributing questionnaires to 108 respondents using accidental sampling technique. By using instrument testing (validity test and reliability test), classic assumption test (normality test, multicollinearity test and heteroscedasticity test) then multiple linear regression and hypothesis testing with the help of the SPSS application. The results of this study indicate that attractiveness has a positive and significant effect on the decision to visit, and facilities have a positive and significant effect on the decision to visit. So it can be concluded in this study that it was found that the variables of attractiveness and facilities had a positive and significant effect on the decision to visit Halal Tourism in Padang City.