So don't get confused by the parameter JSONschema. It is an object with a string attribute containing the JSON data as follows:
{ "FirstName_Sender": "Boris", "LastName_Sender": "Scharinger", "EmailAddress_Sender": "boris.scharinger@siemens.com", "Company_Sender": "Siemens AG", "FirstName_ReferredPerson": "Benno", "LastName_ReferredPerson": "Blumoser", "EmailAddress_ReferredPerson": "Benno.blumoser@siemens.com", "Company_ReferredPerson": "Siemens AG" }
{ "FirstName_Sender": "Boris", "LastName_Sender": "Scharinger", "EmailAddress_Sender": "boris.scharinger@siemens.com", "Company_Sender": "Siemens AG", "FirstName_ReferredPerson": "Benno", "LastName_ReferredPerson": "Blumoser", "EmailAddress_ReferredPerson": "Benno.blumoser@siemens.com", "Company_ReferredPerson": "Siemens AG" }
the variable "ResultString" takes it from there and carries it forward.
JSON Mapping 1:
JSON Mapping 2: