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This study aims to analyze the influence of Product Quality, Price, Sales Promotion, and Advertising on consumer purchasing decisions on the Bukalapak online store platform. This study used a quantitative approach with descriptive methods, aiming to illustrate the relationships between variables based on empirical data. Primary data were obtained by distributing questionnaires to 120 respondents who were active Bukalapak users in the West Medan District. The data analysis technique used was multiple linear regression with the aid of SPSS software to determine the effect of each independent variable on the dependent variable. The analysis results indicate that, partially, the variables Product Quality, Sales Promotion, and Advertising have a positive and significant influence on purchasing decisions. This means that the higher the product quality, the more effective the promotion, and the more attractive the advertisement, the greater the likelihood of consumers making a purchase. Conversely, the variable Price showed a negative and significant influence, indicating that inappropriate pricing can reduce purchase intention. Simultaneously, all four variables have a significant influence on purchasing decisions. The Adjusted R Square value of 70.4% indicates that this research model is able to explain 70.4% of the variation in purchasing decisions, while the dependent variable is influenced by factors outside the model. This study recommends that Bukalapak continue to improve product quality, develop competitive pricing strategies, strengthen promotions, and create creative advertising. Further research is recommended to consider additional variables such as product reviews, brand image, and service quality to enrich the analysis.

This research aims to analyze advertising and brand image on purchasing decisions for wild bee honey products. This type of research is research with a quantitative approach. The population in this research is all Wild Bee Honey customers. Determining the sample in the study used probability sampling using the Slovin formula so that the number of samples in this study was 97 employees. The data analysis method in this research uses SPSS analysis tools through validity, reliability, classical assumption tests, namely normality test, multicollinearity test, heteroscedasticity test, multiple linear regression, t test, F test and correlation and determination coefficients. The results of this research show that (1) Advertising variables influence purchasing decisions, this is proven by the significance value of 0.000 < 0.05. 2. The Brand Image variable has a significant effect on purchasing decisions, this is proven by the significance value of 0.000 < 0.05. 3. Simultaneous test results show that the advertising and brand image variables influence the decision to purchase wild bee honey. This can be proven by the Fcount result of 113.280 or a significance value of 0.000 < 0.05.