The Warsaw Call to Action, launched on June 27, 2025, builds on an emerging consensus on the centrality of customary and informal justice systems to achieving justice for all. At a time when game-changing action is needed to accelerate progress towards the 2030 Agenda for Sustainable Development, stakeholders at the global, regional, national, and local levels are invited to endorse and support the Call to Action in order to articulate collective ambition that ensures commitments to people-centred justice are translated into tangible results.