Questions on returning from abroad
No, previous funding through a WBP fellowship from the DFG is a mandatory eligibility requirement for a return grant from the DFG.
If there is an opportunity to work in Germany immediately after the foreign visit, no return grant can be awarded.
This information is provided in the module guidelines WB fellowship, DFG form 52.19.
In this informal letter, the host institution should declare that appropriate work facilities will be provided for the duration of the return grant. This declaration should be signed by the office that, based on the organisation of the university or non-university research institution, can provide a binding assurance of work facilities and provision of basic equipment. In general, the signature of the university lecturer in whose working group you want to work is sufficient here.
No, the eligibility requirements for a return grant state that the application must be made while abroad, at least two months before returning to Germany.