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TikTok Shop is a popular application that offers online shopping and interaction experiences for consumers. Marketers at TikTok Shop use various methods to encourage consumer decisions to make purchases. This study aims to determine the effect of celebrity endorsers, online customer reviews, and viral marketing on purchasing decisions for TikTok Shop e-commerce products. This study uses a quantitative method with a survey approach by providing questionnaires to respondents. The population studied was all people in Semarang City who have the TikTok Shop application and have purchased products through the application. A sample of 112 people was taken using the convenience sampling technique. Data were obtained through questionnaires and analyzed using multiple linear regression analysis, F test, R2 test, and t test. The results of the study indicate that celebrity endorsements have a positive and significant effect on consumer purchasing decisions for Tiktok Shop users in Semarang City. The increasing use of celebrity endorsements will encourage consumer decisions to buy. Online customer reviews have a positive and significant effect on consumer purchasing decisions for Tiktok Shop users in Semarang City. The more positive online customer reviews, the more it will encourage consumer decisions to buy. Viral marketing has a positive and significant effect on consumer purchasing decisions for Tiktok Shop users in Semarang City. The increasing use of viral marketing will encourage consumer decisions to buy.  

Service quality is a critical issue faced by service providers, as it plays a significant role in shaping customer satisfaction and maintaining customer trust for future services. A decline in service quality over time may negatively affect customers’ perceptions and loyalty. Therefore, this study aims to examine the effect of service quality dimensions on customer satisfaction. This research employed a quantitative approach using primary data collected through a survey method. The sampling technique used was probability sampling with a random sampling method, involving 98 customers as research respondents. Data were analyzed using SPSS version 24. The service quality dimensions analyzed in this study were Tangible, Reliability, Responsiveness, Assurance, and Empathy. The results of the analysis revealed that Tangible and Responsiveness did not have a significant effect on customer satisfaction. In contrast, Reliability, Assurance, and Empathy were found to have a significant positive influence on customer satisfaction. These findings indicate that customers place greater importance on service accuracy, employee competence, trustworthiness, and personal attention. Therefore, service providers are encouraged to prioritize improvements in Reliability, Assurance, and Empathy to enhance customer satisfaction and sustain long-term customer relationships.

In the highly competitive sports equipment market, particularly for badminton items, businesses must rely not only on high-quality products but also on efficient digital media marketing techniques. Brands frequently utilize Instagram, a visual social media site, to enlighten consumers about their products and pique their interest. Yonex uses Instagram with the account @yonex_badminton. Nevertheless, a large following and frequent posting may not always indicate how well a piece of content stimulates customer interest in making a purchase. The purpose of this study is to examine how @yonex_badminton Instagram content affects consumer interest in making purchases. With the use of statistical software, this study employs a quantitative methodology that includes survey procedures and data analysis utilizing basic linear regression. 84 responders who followed the @yonex_badminton Instagram account made up the research sample. With a t-value of 13.387 and a significance value of 0.000, the results demonstrated that Instagram content had a favorable and substantial impact on customer purchase interest. Instagram content may account for 68.6% of the variance in customer purchase interest, according to the coefficient of determination (R2) value of 0.686. Other factors that are not within the purview of this study account for the remaining 31.4%. This research gives a broad overview of how managing regular, engaging, and educational Instagram content may be a useful digital marketing tactic and boost customer interest in making a purchase.  

Consumers are divided into three categories: initial consumers, middle consumers, and end consumers. These three types of consumers certainly have the right to protection, but end consumers as users need to receive more attention to protection, especially in the buying and selling process. This study uses a sociolegal approach with a purposive sampling method to examine the selling process. In addition, this study also examines how protection for end consumers is implemented in LPG buying and selling activities in Balikpapan Tengah District. Thus, this study aims to contribute to the understanding of protection efforts and the impact of not implementing protection properly in Balikpapan Tengah District, a densely populated area. This study is expected to be a reference for the development of consumer protection efforts in the buying and selling of subsidized LPG, as well as providing insight into the consequences that can be received by end consumers and their handling in the future.

In the digital era and free market, technology is growing rapidly. Consumers and businesses are now more inclined to use digital transactions rather than face-to-face cash transactions. This study aims to find solutions and receive feedback related to the implementation of the Consumer Protection Law in the Digital Era and Free Market. The method used in this activity is through counseling and discussion. From the results of this activity, it was concluded that Law No. 8 of 1999 concerning Consumer Protection needs to be updated immediately as it is no longer relevant to the current digital technology, which has advanced far and is different from the conditions in 1999 when the consumer protection law was issued. The results of this activity indicate that the Consumer Protection Law No. 8 of 1999 requires comprehensive updates to accommodate the development of digital transactions, personal data protection, and consumer rights in cyberspace. Furthermore, the importance of educating consumers about their rights in digital transactions is also a key focus, so that the public can avoid losses resulting from unsafe online transactions.

The rapid development of e-commerce in Indonesia makes transactions easier for consumers, but also presents various losses, such as fraud, goods that do not match the description, leaks of personal data, and problems with returning goods. In this context, Law Number 1 of 2024 concerning the Second Amendment to Law Number 11 of 2008 concerning Information and Electronic Transactions (UU ITE) exists as a legal basis which is expected to provide protection for consumers in online buying and selling transactions. This research aims to explore and analyze the effectiveness of the legal protection provided by the ITE Law for consumers, with a focus on protection for detrimental transactions, consumer personal data, as well as dispute resolution mechanisms. The research method used is a normative approach with a literature study of statutory regulations and related legal literature. The research results show that the ITE Law provides quite comprehensive legal protection, including the obligation of electronic system operators to ensure the security of transactions and personal data, as well as regulating sanctions for perpetrators of fraud. However, even though regulations already exist, implementation and consumer understanding of their rights is still a major challenge.

The Cash on Delivery (COD) system is one of the payment methods frequently used in online buying and selling transactions, where consumers pay for ordered products upon receipt of the goods. Although it provides convenience, this system often causes problems, especially related to transaction cancellations by consumers after the delivery process has been carried out by business actors. This research examines how the regulation and allocation of risk for goods return in the COD system according to the Civil Code and the forms of legal protection provided to business actors against the risk of goods return in the COD system according to Law Number 8 of 1999 concerning Consumer Protection. The method used in this research is normative, supplemented by literature study results such as legislation. The results show that the Civil Code recognizes the concept of risk as a legal consequence related to the possibility of losses on the object of the agreement, and legal protection for business actors is divided into preventive legal protection and repressive legal protection.

The rapid development of e-commerce has significantly increased the participation of Micro, Small, and Medium Enterprises (MSMEs) in the digital economy, particularly through the use of pre-order transaction schemes. Although Indonesia has established a relatively comprehensive legal framework for consumer protection and electronic transactions, pre-order transactions involving MSME products remain highly vulnerable to fraud. This study aims to analyze the effectiveness of legal regulation and implementation of consumer protection in pre-order transactions conducted through e-commerce platforms, to identify legal, institutional, and social factors contributing to consumer vulnerability, and to examine the role of the state and e-commerce platform providers in strengthening consumer protection as a public policy. This research employs a normative legal research method with a prescriptive-analytical character, utilizing statutory, conceptual, and case approaches. The findings reveal that existing consumer protection mechanisms remain partial and predominantly reactive, as they do not specifically accommodate the inherent risks of pre-order transactions nor are they supported by preventive supervision and enforcement mechanisms. Consumer vulnerability arises from the interaction between regulatory gaps, institutional limitations, and social conditions such as information asymmetry and low legal and digital literacy. Accordingly, this study emphasizes the necessity of a synergistic role between the state and e-commerce platforms in developing and implementing consumer protection policies oriented toward substantive justice and fraud prevention in the digital economy.

The digitalization of payment systems constitutes an integral part of economic digital transformation, driving a shift in transactions from cash-based to technology-based cashless payments. In Indonesia, this digitalization is manifested through the development of the Quick Response Code Indonesian Standard (QRIS) by Bank Indonesia as a national standard for QR code–based payments. Along with its development, QRIS has not only been used in domestic transactions but has also been implemented in cross-border transactions through intercountry payment system cooperation, particularly within the ASEAN region. However, the rapid expansion of QRIS has not been accompanied by comprehensive and structured legal regulation. This study aims to analyze the structure and hierarchy of QRIS regulation within Indonesia’s payment system as well as the forms of legal protection for consumers in cross-border QRIS transactions. The research employs a normative juridical method using statutory, historical, and conceptual approaches. The findings indicate that QRIS does not yet have a Bank Indonesia Regulation as a primary regulatory framework and is regulated solely through a Regulation of Members of the Board of Governors, which hierarchically functions as an implementing regulation. Consequently, QRIS regulation refers to several different Bank Indonesia Regulations, resulting in regulatory fragmentation. This condition has implications for legal uncertainty and the suboptimal legal protection of consumers in cross-border QRIS transactions.

The development of automotive technology continuously seeks solutions to improve human mobility and address environmental concerns. This study focuses on the Hydrogen Reactor (HHO) technology as an alternative solution for fuel efficiency and emission reduction, specifically examining the legal protection of consumers utilizing this technology at Bengkel Karya Gemilang. The research aims to analyze the legal framework of consumer protection in the context of new energy-saving technologies and to identify the legal responsibilities of business actors (workshops) and the rights of consumers. Employing a normative legal research method with a case study approach, the study analyzes the implementation of Law No. 8 of 1999 concerning Consumer Protection (UUPK) in the utilization of HHO reactors. The findings indicate that while the HHO reactor technology offers a potential 5-15% increase in fuel efficiency and CO emission reduction, its implementation introduces new legal challenges, particularly regarding product safety, standardization, and the obligation for periodic servicing. Consumer protection is primarily ensured through the workshop’s obligation to provide clear product explanations, guarantee product safety, and fulfill the periodic service commitment. The study concludes that the existing UUPK provides a sufficient legal basis, but its implementation requires clear and transparent agreements, especially concerning the technical specifications and long-term maintenance of the HHO reactor, to ensure consumer rights are fully protected against potential risks associated with new, non-standardized automotive technologies.

This study aims to analyze consumer purchasing behavior on e-commerce platforms using the Decision Tree algorithm as an easily interpretable classification method. The dataset used consists of 12,330 transaction records with 18 attributes representing visitor characteristics and user activities during interactions with the e-commerce platform. The research stages include data exploration to identify initial patterns, data preprocessing to handle missing values and class imbalance, splitting the data into training and testing sets, training the Decision Tree model, evaluating model performance, and visualizing the tree structure to analyze decision rules.The test results show that the Decision Tree model with a maximum depth of 3 achieves fairly good performance, with an average accuracy of 89.78%, precision of 69.82%, recall of 59.95%, and an F1-score of 64.51% for the buyer class. The visualization of the decision tree provides clear interpretation of the main attributes influencing purchasing decisions, thereby facilitating understanding for non-technical decision makers. Overall, this study demonstrates that the Decision Tree method is effective in modeling consumer purchasing behavior in e-commerce and can be utilized as a basis for data-driven business decision making, particularly in marketing strategies and improving sales conversion rates.

The development of information technology has significantly transformed commercial activities, particularly through the emergence of electronic transactions or e-commerce. The convenience offered by digital trading systems provides various benefits for both consumers and business actors, such as time efficiency, ease of access, and broader market reach. However, behind these advantages, there are also several risks that may harm consumers, including discrepancies between product descriptions and actual goods, delivery delays, and potential online fraud. This study aims to analyze the legal protection for consumers in electronic transactions and the responsibilities of business actors within digital commerce systems. This research employs a normative legal research method using statutory and conceptual approaches. The findings indicate that consumer legal protection in electronic transactions has been regulated in various laws and regulations; however, in practice, several challenges remain in its implementation. Therefore, strengthening regulations, enhancing supervision of business actors, and increasing public legal awareness are necessary to create a safer electronic transaction system and ensure legal certainty for consumers.

Consumer protection is a crucial aspect of trade and industrial activities to ensure consumers’ rights to quality, safety, and fairness in obtaining goods. In the field of metrology, qualitative improvement of product quality plays a strategic role as a preventive effort to minimize consumer losses caused by unfair or non-compliant trading practices. This is in line with Law Number 8 of 1999 on Consumer Protection, which emphasizes legal certainty, honesty, and the responsibility of business actors toward consumers. This study aims to examine qualitative product quality improvement as an effort to realize consumer protection in the field of metrology. The research employs a qualitative descriptive approach through literature review and analysis of regulations, policies, and the role of metrological institutions in supervising product quality. The discussion focuses on compliance with standards, supervisory mechanisms, and the responsibility of business actors as key elements of consumer protection. The findings indicate that qualitative improvement of product quality contributes to fair transactions, enhances consumer trust, and prevents practices that may harm consumers. This study is expected to serve as a reference for relevant institutions in strengthening the role of metrology as an integral part of the consumer protection system.

In the rapidly evolving digital economy, the ability to anticipate transaction surges is a strategic asset for marketplace platforms to maintain operational efficiency. This research aims to build an accurate daily transaction volume forecasting system thru the implementation of an Extract, Transform, and Load (ETL) pipeline and Autoregressive Integrated Moving Average (ARIMA) predictive modeling. The dataset used is sourced from dataset_olshop.csv, which includes transaction history for the entire year of 2025. The ETL stage focused on data cleaning and handling missing values, while time series analysis began with the Augmented Dickey-Fuller (ADF) stationarity test, which yielded a significant p-value of 0.000006. The parameter model was optimized using the auto_arima algorithm, which determined the ARIMA(2,0,0) configuration as the best model. The evaluation results of the model show fairly stable performance with a Root Mean Squared Error (RMSE) value of 2.002 and a Mean Absolute Error (MAE) of 1.704 on the test data. Research findings reveal a consistently higher purchasing pattern during the mid-month and end-of-month periods, with an average of 5.52 daily transactions, compared to the beginning of the month, which saw 5.48 transactions. The 30-day forecast results provide valuable insights for online store managers to proactively adjust inventory and logistics workforce allocation strategies. This research concludes that integrating data engineering techniques and statistical analysis can provide predictive solutions for the dynamics of the digital market.

The development of electronic commerce (e-commerce) in Indonesia has grown rapidly alongside the increased use of digital technology by the public. While offering convenience and efficiency in transactions, e-commerce also presents various legal challenges that may harm consumers, such as unclear product information, personal data breaches, and weak dispute resolution mechanisms. These conditions highlight the importance of consumer legal protection in digital transactions. This study aims to analyze consumer legal protection in e-commerce transactions, focusing on existing challenges and legal remedies based on Law Number 8 of 1999 concerning Consumer Protection and Government Regulation Number 80 of 2019 on Trade Through Electronic Systems. The research employs a qualitative method with a normative juridical approach. Data were collected through literature review of primary legal materials, including laws and regulations, as well as secondary materials such as journals, books, articles, and other relevant sources. The findings indicate that consumer legal protection in Indonesian e-commerce transactions has an adequate legal foundation. Law Number 8 of 1999 serves as the main basis for protecting consumer rights, while Government Regulation Number 80 of 2019 strengthens regulations in response to digital commerce developments. However, implementation remains challenging, particularly regarding supervision and consistent law enforcement. Therefore, stronger government involvement, increased responsibility of e-commerce businesses, and improved consumer awareness are needed to achieve effective and sustainable consumer protection.

The rapid growth of Sharia-based e-commerce reflects the increasing demand among Muslim consumers for transactions that comply with Islamic principles. However, digital transaction practices still raise various concerns, particularly regarding the clarity of contracts (akad), payment security, and information transparency. This study aims to explain Muslim consumers’ perceptions of the application of the legal maxim al-yaqīn lā yazūlu bi al-shakk in Sharia e-commerce transactions, with a focus on students of the State Islamic University of North Sumatra. This research employs a descriptive qualitative approach, using in-depth interviews with 10 informants as the primary data source, supported by questionnaire data to identify general tendencies in respondents’ perceptions. The findings reveal that although most respondents understand the maxim theoretically, they have not been able to apply it effectively in digital transaction contexts. The uncertainties experienced by respondents are predominantly triggered by technical factors, such as delays in payment confirmation, rather than shakk in the fiqh sense. Moreover, limited understanding of digital contract mechanisms contributes to uncertainty regarding the moment when a contract is considered legally valid. Information transparency emerges as a key factor in fostering yaqīn, particularly in relation to the clarity of product descriptions and transaction procedures. This study concludes that the application of al-yaqīn lā yazūlu bi al-shakk in Sharia e-commerce remains suboptimal due to limited digital fiqh literacy and insufficient technological reliability, highlighting the need for enhanced digital muamalah education and improved information quality on Sharia e-commerce platform.

This research aims to analyze legal protection for consumers related to the use of standard clauses in e-commerce transactions in Indonesia. The rapid growth of the digital economy has encouraged the widespread application of “take-it-or-leave-it” contracts, which often include exoneration clauses that place consumers in a disadvantaged position. This study employs a normative legal research method using a statutory approach to examine the conformity of such clauses with existing consumer protection regulations. The findings reveal that many digital platforms continue to apply standard clauses that unilaterally transfer liability to consumers, which contradicts Article 18 of Law Number 8 of 1999 concerning Consumer Protection. As a result, these clauses are legally invalid and have no binding force. Consumer legal protection is implemented through preventive measures in the form of government supervision of business actors, as well as repressive measures through legal remedies and dispute resolution mechanisms provided by the Consumer Dispute Resolution Agency (BPSK). These mechanisms aim to ensure fairness and balance of interests between business actors and consumers in e-commerce transactions.

The development of online platforms has transformed consumer purchasing behavior, including in the culinary MSME sector. Product availability across multiple online platforms has become an important factor influencing consumers’ purchasing decisions. This study aims to analyze the effect of the availability of culinary MSME products on various online platforms on consumer purchasing decisions. This research employs a quantitative approach using an explanatory research method. Data were collected through questionnaires distributed to consumers who had purchased culinary MSME products via more than one online platform. Data analysis techniques included validity testing, reliability testing, simple linear regression analysis, and hypothesis testing (t-test). The results indicate that the availability of culinary MSME products on various online platforms has a positive and significant effect on consumer purchasing decisions. These findings suggest that the easier culinary MSME products are to find, access, and consistently available across multiple online platforms, the higher the likelihood of consumers making purchasing decisions. This study is expected to contribute theoretically to digital marketing literature and provide practical insights for culinary MSMEs in developing effective multi-platform marketing strategies.

The rapid development of information technology has significantly increased the practice of online buying and selling as part of electronic commerce (e-commerce). One of the payment methods widely used in online transactions is cash on delivery (COD), in which payment is made by the consumer at the time the goods are received. Although the COD system provides convenience and a sense of security for consumers, in practice it often gives rise to legal problems, particularly unilateral cancellations by consumers. Such cancellations are frequently carried out after the goods have been shipped or have arrived at the destination address, resulting in material and non-material losses for business actors. This condition indicates an imbalance in legal protection between consumers and business actors in online transactions using the COD system. This study aims to analyze the mechanism of implementing the COD payment system in online buying and selling transactions and to examine the forms of legal protection available for business actors affected by unilateral cancellations by consumers. This research employs an empirical juridical method, also known as sociological legal research, with a field research approach to examine the application of law in practice, particularly in Jambi City. Data were collected through literature review and interviews and analyzed qualitatively. The findings of this study are expected to contribute to the development of legal regulation and to strengthen legal certainty and protection for business actors in online transactions.  

The Fast Beauty phenomenon presents social pressure from marketing strategies that create a feeling of worry about being left behind, thus encouraging generation Z consumers to purchase beauty products in the Fast Beauty brand category. This study aims to examine the relationship between Fear of Missing Out (FoMO) and purchase decisions among generation Z as consumers of Fast Beauty products. The method used in this study was a quantitative correlational method with 200 participants aged 18 to 30 years, of which 7 male (3.5%) and 193 female (96.5%). Data collection was conducted through an online questionnaire compiled using the Missing Out Scale (FoMOS) and a Purchase Decision scale using a Likert scale of 1 to 4. The analysis results show a significant positive relationship between Fear of Missing Out (FoMO) and purchase decisions (r = 0.620, p < 0.05), where the higher the Fear of Missing Out (FoMO), the higher the tendency of Generation Z consumers to make Fast Beauty product purchases. These analysis results align with previous research showing that consumers experiencing Fear of Missing Out (FoMO) tend to make product purchases without careful consideration due to concerns about being left behind in their social environment. The implications of this research show the importance of implementing marketing strategies that pay more attention to the psychological side of consumers and the implementation of more conscious consumer behavior before purchasing Fast Beauty products.