The nexus between migration research and social work research led to interesting impulses to study transnational social work practices. However, the practical terms of being involved in crossborder programs are understudied. This article aims to transcend the preserving national and western-centric orientation in social work research by investigating assisted voluntary return and reintegration (AVRR) support. Drawing on interviews and group discussions with social workers supporting returnees in host countries and countries of origin, I set out to reveal the challenges that this practice poses within the Belgian AVRR program. The findings showed that the Belgian social workers were confronted with a lack of transnational knowledge to fulfill their roles, resulting from a division between different practitioners within the support chain and the localization of the main focus of the support across borders. Furthermore, the data shed light onto the struggles with regard to social workers' positions within the program and towards its goals. For the Belgian social workers, this is related to their place within a restrictive migration policy. For the social workers in the countries of origin it was mainly linked to the transnational character of the program. Viewing these findings, I reflect on their implications for the provision of AVRR support and transnational support practices.