Hope anyone can help me out; I want to find a specific 1:N related record so I can use it in a Bulk operation-Distributed action. Therefore I tried to use "Request Builder Set Lookup from FetchXML" with the following FetchXML:

The error is that {EntityCurrent(EntityCurrent)} is not a valid GUID.
Is it possible to use a field value in the FetchXML query? Or should I try to do this another way?
Thanks!
Elowy.