Managing invalid data
You can map invalid data to an output, just like any other data. For example, you can place all invalid data in a separate output for editing or debugging purposes. You can map invalid data to an error report.
To map invalid data, it must be contained in a valid object. A map does not run unless all input card objects are valid. For example, if you want to map an invalid purchase order in a file of many purchase orders, the file itself must be valid.