Hi everyone, I am just recently working with Atlas and already stuck with something. I created a custom typedef called 'Table' with this structure: {         "superTypes" : [],         "category" : "ENTITY",         "name" : "Table",         "description" : "a type definition for an existing table from BigQuery",         "typeVersion" : "1.0",         "attributeDefs" :[             {                 "name" : "dataset_name",                 "typeName" : "string",                 "isOptional" : False,                 "cardinality" : "SINGLE",                 "valuesMinCount" : 1,                 "valuesMaxCount" : 1,                 "isUnique" : False,                 "isIndexable" : True             }             ,{                 "name" : "schema",                 "typeName" : "array<Column>",                 "isOptional" : True,                 "cardinality" : "SINGLE",                 "valuesMinCount" : 1,                 "valuesMaxCount" : 1,                 "isUnique" : False,                 "isIndexable" : True                 }         ] } And then I have created some entities with the typeName 'Table'. The problem is that I forgot one required attribute inside the 'Table' typedef and want to add it. The first solution I thought of was deleting the 'Table' typedef and creating a new one. But unfortunately it returned with this response: {"errorCode":"ATLAS-409-00-002","errorMessage":"Given type Table has references"} I assumed that this is because I have entities that refers to my 'Table' type. I tried deleting all the 'Table' entities with the Atlas API and tried deleting the 'Table' typedef again, but it still returned the same error code shown above. I found on some other forum that I need to hard delete the entities, but the API only provides soft delete. So how do I hard delete? The second solution was to use the update endpoint to insert the new attribute, but it did not work and returned: {"errorCode":"ATLAS-400-00-00C","errorMessage":"Table.name : can not add mandatory attribute"} I assume that this is because the attribute I tried to add is set to "isOptional: False" and there are existing entities. So now I'm stuck with no idea how to handle this. For the moment, I'll create a new type and continue my work but hopefully someone can help me solve this. I appreciate anyone that can provide me with the best way to handle this. Thank you! (P.S. If you need it, the attribute that I'm trying to add is this: {     "name" : "name",     "typeName" : "string",     "isOptional" : False,     "cardinality" : "SINGLE",     "valuesMinCount" : 1,     "valuesMaxCount" : 1,     "isUnique" : False,     "isIndexable" : True } ) (P.P.S. I am using Python to access the API) ... View more