The aim of this project is to combat the non-use of rights and services by families in situations of poverty and/or social exclusion. To this end, the University of Mons proposes to set up an individualised proximal catch-up methodology within the various projects in the APPI portfolio in order to mobilise the target audience. This methodology will be operationalized by a coordinator who will organize multidisciplinary mobile teams. Although the Mob ́In project builds on and reinforces the other projects in the portfolio through increased participation of the target audience, the activities should be considered independently of those of the partners. Indeed, the catch-up methodology is mainly intended to be outside the institutional framework so that stakeholders are perceived in a neutral way. This neutrality will allow the creation and/or strengthening of a bond of trust with families in order to re-establish an inclusive dynamic by gradually integrating them into the partner’s project. Finally, the complementary approach developed here will encourage the emergence of a transversal dynamic of portfolio shares.