The increase of Online Food Delivery Services (OFDS) is a result of rising consumer demand. Halal food's integrity has been questioned by customers particularly on issues of hygiene and quality. There are a few OFDS literature reviews that have examined halal supply chains in-depth. The use of Halal Supply Chain Management Systems (HSCMS) by food delivery services is examined in this study. Traceability mechanisms and barriers to halal supply chain implementation will be identified. Qualitative methods are used to collect data and semi-structured questions are used to quantify information. Interviews are conducted to assess halal supply chain management practices. The Informants were the upper management of two halal food delivery companies in Klang Valley, Selangor, Peninsular Malaysia. The companies were L and B. HSCMS are crucial for addressing halal integrity concerns. This study provides valuable insights into how halal supply chains are currently managed. Through a traceability system for OFDS, multidimensional parties and academia will discover how to ensure halal integrity, safety and quality.