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The retail industry is currently facing increasingly intense competition, requiring optimal supply chain efficiency. Warehouses play a strategic role in controlling inventory flows and supporting a company’s operational performance. At K3Mart, stock shortages are still frequently found, caused by low supplier compliance with Service Level Agreements (SLA) and delays in delivery schedules, which negatively affect distribution processes and store service quality. This study aims to analyze the effect of supplier compliance with SLA and delivery timeliness on warehouse operational performance at K3Mart. This research employs a quantitative method by distributing questionnaires to 40 respondents from the warehouse, purchasing, and procurement divisions using a saturated sampling technique. The research instrument uses a Likert scale. Data analysis was conducted using validity and reliability tests, classical assumption tests, multiple linear regression analysis, t-test, F-test, and coefficient of determination with the assistance of SPSS software. The results show that supplier compliance with SLA and delivery timeliness have a positive and significant effect, both partially and simultaneously, on warehouse operational performance. Therefore, improving supplier compliance with SLA and delivery timeliness can enhance optimal warehouse operational performance.

The development of information technology in a digital-based economy supports business actors in aspects of marketing, procurement, distribution, and consumer service. This research aims to determine the influence of price perceptions, online customer reviews, and promotions on purchasing decisions for Heylook Official Shop products on the Shopee marketplace. The population in the research is Heylook Official Shop consumers on the Shopee marketplace the number of which is unknown (infinite). The number of samples in this study was 97 respondents determined using the Lemeshow formula. The sampling technique in this research is non-probability sampling with a purposive sampling method. Data collection was carried out through a questionnaire applied on Google Forms, and measured using a Likert scale. Data analysis uses multiple linear regression with the help of SPSS version 26 software. The findings in this research show that price perceptions and promotions have a significant influence on purchasing decisions, while online customer reviews do not influence Heylook Official Shop Purchase Decisions in the Shopee marketplace. Companies are expected to maintain competitive prices and continue to carry out promotional activities effectively. Companies need to push consumers to provide reviews of the products they purchase so that they become input for other consumers and the company itself.

Management of facilities and infrastructure is one of the factors affecting success in a company. One is to support the company's operational activities. The purpose of this study was to find out the management of infrastructure in one of the companies engaged in food and beverage. The research results show that the company has carried out management by doing the planning, procurement, maintenance, inventory, and removal of infrastructure. However, not all infrastructure is in an optimal state. This can be seen from the manual use of the machine and the leaky air conditioning due to the lack of regular maintenance. This study used qualitative methods using data collection techniques, namely observation, interviews, and prior literature, and using purposive sampling techniques.