@ Steven Matison I need a help in creating a Avro Schema for Nested JSON : My Example JSON in GenerateFlowFile : { "ser" : { "measureSeries" : { "teNo" : "TE", "testStart" : "EE", "testEnd" : "EE" } } } My Avro Nested Schema Validated in : https://json-schema-validator.herokuapp.com/avro.jsp { "name":"devices", "type":"record", "fields": [ { "name": "ser", "type": {"type":"array","items":{ "name":"meSer","type":"record","fields": [ {"name":"teNo","type":["string","null"]}, {"name":"testStart","type":["string","null"]}, {"name":"testEnd","type":["string","null" ]} ] } } } ] } I am using CovertRecord Processor : Record Reader : JsonTreeReader Record Writter : RecordSetWriter. It is throwing an error "could not parse incoming data". Any Input on soving nested schema will help me.. ... View more