Within our UnDiangosed Patients Working Group (UDP-WG) we have successfully held our 3rd workshop and were able to clarify the last open questions for the finalization of the UnDiagnosed Patients Pathway (UDPP) together. We will finalize the Pathway in collaboration with the professional support of an illustrator and look forward to presenting the final result. We would like to take this opportunity to thank the UDP-WG for the successful cooperation and support! We will keep you informed.