Collections-based organizations (CBOs) can play a crucial role in addressing sustainable development (SD), but their aspiration to become more sustainable, as seen in policies and guidelines, is confronted with several challenges in practice. To facilitate a sustainability transition, this process of change needs to be managed and adequate tools adopted and implemented. Many tools exist to support this transition; however, a scarcity of centralized resources available to CBOs might negatively affect the integration of sustainability practices in their work. With the aim to address this gap, ICCROM launched the project “Our Collections Matter” (OCM) and developed an online toolkit (OCMT) to centralize resources and help CBOs align their work to the UN Agenda 2030. Recently, a workshop was organized with professionals in the field to discuss shared challenges and aspirations and to test the OCMT. This study reflects on how such centralization of resources can contribute to overcoming existing challenges and support the sustainability aspirations of CBOs, fostering change in the field. To do that, the workshop outcomes are analyzed and discussed from a change management perspective, looking at the impact that the OCM project and its activities can have on fostering change, and the role that ICCROM can play in facilitating the sustainability transition of the field.@en