Due to its constitutional and legal system, Germany is different from a number of other countries around the world. Measures fighting the spread of COVID-19 in Germany cannot be taken at the central government level in Berlin (Bundesregierung) but have to be taken by the governments of the 16 states (Landesregierungen), which constitute the Federal Republic of Germany.
However, in recent days the Prime Ministers of the 16 German states have coordinated their action closely with each other and with the central German government.
The validity of an assignment of receivables cross-border depends on the law that applies to the assignment.
What might amount to a valid assignment in one jurisdiction, does not mean, that it is valid in another and where there are competing claims to the receivables and competing jurisdictions, the question of which law applies and therefore whether there has been a valid assignment significantly affects the ability of the assignee to rely on the assignment.