Validation reporting deals with what happens when the validation constraints are not met.
Whenever a map is executed, an execution status object is created that contains any sort of exception information associated with the map execution. This includes any validation errors. The execution status object is defined by a built-in structure ExecutionStatus and is automatically provided to an execution status map to handle the error processing upon completion of the executed map. The execution status map can be specified for each map or globally for the entire runtime.