A considerable degree of collaboration between civil society organisations (CSOs) and governmental organisations (GOs) occurs in various collaborative areas, such as collaborative platforms, that aim to increase mutual understanding and reach shared solutions to complex social challenges. However, little is known regarding how CSOs relate to and discuss the starting conditions for participating in collaborative platforms. By highlighting the perspectives of CSOs supporting refugees, this article shows that the starting conditions affect whether CSOs decide to participate. Nevertheless, the starting conditions are also essential for their general understanding of the platform's aim and purpose, thus affecting more than the initial decision to participate or not. A primary barrier to their participation is the political agenda behind the platform and what role CSOs think they should have in society. Consequently, the inclusive 'whole society approach' that collaborative platforms intend to create might be out of reach before starting the collaboration.