DSF FHIR server instances always have something called an organization identifer. It uniquely identifies
the organization the DSF FHIR server instance belongs to for its Allow-List mechanism.
It is configured as an environment variable.
You can make a GET request to https://domain/fhir/Organization to get a list of all organizations for the DSF FHIR server
instance running under domain. The results will also include the organization identifier of each organization.
Task resources require you to reference an organization via its identifier as
the Task.requester and Task.restriction.recipient elements. The exact values for these elements
depend on the ActivityDefinition the Task resource
should conform to.
As a general rule, you will want to put the identifier of your own organization as the Task.requester and Task.restriction.recipient elements
for Task resources which initially start processes. All other cases depend on the context of
the message being sent during process execution.