Hi,
Does anyone have a sample that demonstrates how to use the Data Transformation option create='existing', in order to update an existing object by its ID? My use-case is that I have an HL7 message coming in which contains data on a patient that may or may not already exist in a (non-HL7) table. I want to use the PatientID from the (source) HL7 message, check if that patient exists in the (target) object, and if so, insert some new data into the existing patient, or if not, create a new patient.