“…In an increasingly mobile world, the organisation of social security faces new challenges (Sabates-Wheeler, Koettl, & Avato, 2011). Additionally, migrants within the EU-where a unique transnational social security system has been established-face substantial barriers when accessing welfare-related services and resources (Scheibelhofer & Holzinger, 2018;Seeleib-Kaiser & Pennings, 2018). For example, studies from Germany and Austria have shown that the enforcement of German as the language of administration and communication is the main informal barrier in this regard (Holzinger, 2020;Ratzmann, 2018).…”