Comprehensive, balanced, and mutually beneficial partnerships with countries of origin and transit are fundamental prerequisites for sustainably managing migration flows to the EU. The European Commission’s New Pact on Migration and Asylum proposes a range of measures to achieve effective cooperation with non-EU countries. Developing channels for legal migration as well as complementary pathways for protection, improving return and readmission, and supporting countries hosting refugees are essential elements in this regard. What progress has been made so far in negotiations on the external dimension of the New Pact, and what challenges remain to be addressed? How are non-EU partner countries involved in this process? What can the G20 do to support sustainable cooperation with countries of origin and transit?