@Sunile Manjee Yes, I did flatten the json. Here is what I used (all one line): {"enumTypes":[],"structTypes":[],"traitTypes": [{"superTypes":[],"hierarchicalMetaTypeName":"org.apache.atlas.typesystem.types.TraitType","typeName":"EXPIRES_ON","attributeDefinitions":[{"name":"expiry_date","dataTypeName":"string","multiplicity":"required","isComposite":false,"isUnique":false,"isIndexable":true,"reverseAttributeName": null}]}],"classTypes":[]} But for me, I had left out an attribute. ... View more