On October 21 and 22, 2021, the six projects named MIICT, REBUILD, NADINE, MICADO, easyRights, and WELCOME, all funded under the European Union���s Horizon 2020 research and innovation program, organized their second Joint Migration Policy Roundtable. This Handbook reflects on the two thematic lines common to all the six projects, namely: co-creation, participatory design, and multi-stakeholder collaboration on the one hand; ICT or AI-based tools and novel digital services for supporting integration on the other. Its contents are the result of the discussion among Roundtable participants, which was articulated in two thematic sessions: the first taking stock of the cocreational dimension to frame the wider issue of service co-design for social integration; the second reflecting on the sustainability conditions of newly developed ICT or AI enabled tools and services.