A systematic approach to prioritising existing CSA approaches is needed for better adaptation and mitigation planning of climate change-related programmes at the target scale (e.g. community, province, national) (Khatri-Chhetri et al., 2017; FAO 2013). For example, there are currently numerous registries containing a wide range of CSA approaches such as those included in ASEAN Regional Guidelines Vol. I and II (ASEAN CRN Regional Guidelines, 2015 and 2017), other sources such as the Compendium on CSA technologies and approaches of each AMS (Labios et al., 2019; Tan Yen et al., 2017), journal publications and other documents (e.g. institutional reports, policy briefs, project reports). Major challenges therefore exist when it comes to identifying and prioritising CSA approaches that give consideration to local climatic risks and demand for technology in diverse agro-ecological zones. Appropriately prioritised CSA approaches would mean enhanced impacts in the pillars of CSA (productivity, adaptation, mitigation) and more effective scaling up as these address local preferences and capacities.