Is there a way to add your validation for  HS.Local.SDA3.Observation. In OnValidate method. If yes once we load the patient in Clinical Viewer, Will that custom logic will apply on SDA.

I am using same logic for Observations, OBS. 

Expression val = ##class(CUSTOM.Transformation.Observation).GetObsItems(val)

In my transformation classMethod. I am able to get the PatientID :  $get(%request.Data("PatientID",1)) 

But not able to get the RowId. to find the streamlet id. 

Please let me know how to get the RowID for OBS.

Thank you 

How to achive Single sign On for clinical viewer.