This study aims to analyze the implementation of halal certification at Warung Kopi Manis Talun, its impact on increasing Muslim consumer trust, and its application from the perspective of Maqashid Sharia and Islamic business ethics. A qualitative approach with a descriptive case study design was employed in this research. Data were collected through in-depth interviews with management, employees, and consumers, supplemented by field observations and documentation. Data analysis was conducted using the Miles and Huberman interactive model, utilizing source and technique triangulation to ensure data trustworthiness. The results indicate that obtaining a halal certificate through the BPJPH self-declare scheme successfully transformed the coffee shop's operational standards into a more structured, hygienic system aligned with the Halal Product Assurance System (SJPH). The visible display of the official halal label provides legal certainty and spiritual reassurance, effectively eliminating consumer doubt while significantly enhancing customer trust and loyalty. Furthermore, transparency regarding raw materials and friendly service serve as key supporting factors that reflect principles of openness, consumer protection, and the fulfillment of Maqashid Sharia in safeguarding religion (hifzh ad-din) and life (hifzh an-nafs).
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