The ASEAN Catch Documentation Scheme (ACDS) is a management tool to prevent the entry of fish and fishery products from IUU fishing to the supply chains in the ASEAN Region. Towards the improvement of the traceability system for marine capture fisheries, the manual’s overall objective of the ASEAN Catch Documentation Schemes’ electronic system is to guide relevant stakeholders along the supply chains to understand the step-by-step how to implement the eACDS applications.