<![CDATA[TikTok Shop is a rapidly growing e-commerce platform in Indonesia, particularly through its Yellow Basket feature, which allows content creators to embed product links directly in videos. This feature has become essential within Indonesia's social commerce ecosystem. However, limited research specifically evaluates the usability of this feature from a general user perspective. This study aims to measure and evaluate the usability of TikTok Shop's Yellow Basket feature using the System Usability Scale (SUS) method. This method was selected because it is a widely validated and reliable instrument for assessing the perceived usability of interactive systems, providing a standardized measure that facilitates comparison across studies. Testing involved 50 active TikTok Shop users from various age groups, within four predefined age categories (17–21, 22–35, 36–45, and above 45 years). Data were collected through an online questionnaire consisting of 10 statements with a Likert scale and then analyzed using the standard SUS scoring formula. The evaluation yielded a mean SUS score of 71.30, categorized as “Good” according to the adjective rating scale. Dimension-level analysis identified efficiency and errors as the weakest dimensions, attributed to cognitive load induced by a concurrently active background video during catalog navigation. Thematic analysis of open-ended responses revealed three dominant concerns: pricing transparency issues, a rigid and inflexible user interface, and a perceived lack of practicality. Additionally, some of respondents reported usability difficulties suggesting an age-related usability gap not captured by the aggregate SUS score. Design recommendations are proposed to address the identified usability gaps and improve the overall user experience.]]>
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