Problem My script failed when try lacked an explicit import from dw::Runtime . The runtime reported Unable to resolve reference of: try during execution. The documentation describes try as a function that returns a Result object for handling errors docs . Input { "order" : { "id" : "ORD-2001" , "total" : "12.5O" } } Working configuration %dw 2.0 // try() lives in dw::Runtime — not import...