Hello,   I found the following section on the Atlas REST API page, but somehow I couldn't solve the problem. If anyone can help, I would appreciate it.   DELETE /v2/types/typedefs Content-Type: application/json { "enumDefs" : [ { "elementDefs" : [ { "value" : "...", "description" : "...", "ordinal" : 12345 }, { "value" : "...", "description" : "...", "ordinal" : 12345 } ], "defaultValue" : "...", "category" : "MAP", "guid" : "...", "createdBy" : "...", "updatedBy" : "...", "createTime" : 12345, "updateTime" : 12345, "version" : 12345, "name" : "...", "description" : "...", "typeVersion" : "...", "options" : { "property1" : "...", "property2" : "..." } }, { "elementDefs" : [ { "value" : "...", "description" : "...", "ordinal" : 12345 }, { "value" : "...", "description" : "", "ordinal" : 12345 } ], "defaultValue" : "...", "category" : "ARRAY", "guid" : "...", "createdBy" : "...", "updatedBy" : "...", "createTime" : 12345, "updateTime" : 12345, "version" : 12345, "name" : "...", "description" : "...", "typeVersion" : "...", "options" : { "property1" : "...", "property2" : "..." } } ], "structDefs" : [ { "attributeDefs" : [ { "name" : "...", "typeName" : "...", "isOptional" : true, "cardinality" : "SET", "valuesMinCount" : 12345, "valuesMaxCount" : 12345, "isUnique" : true, "isIndexable" : true, "constraints" : [ { }, { } ] }, { "name" : "...", "typeName" : "...", "isOptional" : true, "cardinality" : "LIST", "valuesMinCount" : 12345, "valuesMaxCount" : 12345, "isUnique" : true, "isIndexable" : true, "constraints" : [ { }, { } ] } ], "category" : "MAP", "guid" : "...", "createdBy" : "", routermanuals.net "updatedBy" : "...", "createTime" : 12345, "updateTime" : 12345, "version" : 12345, "name" : "...", "description" : "...", "typeVersion" : "...", "options" : { "property1" : "...", "property2" : "..." } }, { "attributeDefs" : [ { "name" : "...", "typeName" : "...", "isOptional" : true, "cardinality" : "SET", "valuesMinCount" : 12345, "valuesMaxCount" : 12345, "isUnique" : true, "isIndexable" : true, "constraints" : [ { }, { } ] }, { "name" : "...", "typeName" : "...", "isOptional" : true, "cardinality" : "SINGLE", "valuesMinCount" : 12345, "valuesMaxCount" : 12345, "isUnique" : true, "isIndexable" : true, "constraints" : [ { }, { } ] } ], "category" : "PRIMITIVE", "guid" : "...", "createdBy" : "", printereasy.com "updatedBy" : "...", "createTime" : 12345, "updateTime" : 12345, "version" : 12345, "name" : "...", "description" : "...", "typeVersion" : "...", "options" : { "property1" : "...", "property2" : "..." } } ], "classificationDefs" : [ { "superTypes" : [ "" ], techtipseasy.com "attributeDefs" : [ { "name" : "...", "typeName" : "...", "isOptional" : true, "cardinality" : "SET", "valuesMinCount" : 12345, "valuesMaxCount" : 12345, "isUnique" : true, "isIndexable" : true, "constraints" : [ { }, { } ] }, { "name" : "...", "typeName" : "...", "isOptional" : true, "cardinality" : "SINGLE", "valuesMinCount" : 12345, "valuesMaxCount" : 12345, "isUnique" : true, "isIndexable" : true, "constraints" : [ { }, { } ] } ], "category" : "ARRAY", "guid" : "...", "createdBy" : "...", "updatedBy" : "...", "createTime" : 12345, "updateTime" : 12345, "version" : 12345, "name" : "...", "description" : "...", "typeVersion" : "...", "options" : { "property1" : "...", "property2" : "..." } }, { "superTypes" : [ "...", "..." ], "attributeDefs" : [ { "name" : "...", "typeName" : "...", "isOptional" : true, "cardinality" : "SET", "valuesMinCount" : 12345, "valuesMaxCount" : 12345, "isUnique" : true, "isIndexable" : true, "constraints" : [ { }, { } ] }, { "name" : "...", "typeName" : "...", "isOptional" : true, "cardinality" : "SET", "valuesMinCount" : 12345, "valuesMaxCount" : 12345, "isUnique" : true, "isIndexable" : true, "constraints" : [ { }, { } ] } ], "category" : "RELATIONSHIP", "guid" : "...", "createdBy" : "...", "updatedBy" : "...", "createTime" : 12345, "updateTime" : 12345, "version" : 12345, "name" : "...", "description" : "...", "typeVersion" : "...", "options" : { "property1" : "...", "property2" : "..." } } ], "entityDefs" : [ { "superTypes" : [ "...", "..." ], "attributeDefs" : [ { "name" : "...", "typeName" : "...", "isOptional" : true, "cardinality" : "SET", "valuesMinCount" : 12345, "valuesMaxCount" : 12345, "isUnique" : true, "isIndexable" : true, "constraints" : [ { }, { } ] }, { "name" : "...", "typeName" : "...", "isOptional" : true, "cardinality" : "SINGLE", "valuesMinCount" : 12345, "valuesMaxCount" : 12345, "isUnique" : true, "isIndexable" : true, "constraints" : [ { }, { } ] } ], "category" : "PRIMITIVE", "guid" : "...", "createdBy" : "...", "updatedBy" : "...", "createTime" : 12345, "updateTime" : 12345, "version" : 12345, "name" : "...", "description" : "...", "typeVersion" : "...", "options" : { "property1" : "...", "property2" : "..." } }, { "superTypes" : [ "...", "..." ], "attributeDefs" : [ { "name" : "...", "typeName" : "...", "isOptional" : true, "cardinality" : "LIST", "valuesMinCount" : 12345, "valuesMaxCount" : 12345, "isUnique" : true, "isIndexable" : true, "constraints" : [ { }, { } ] }, { "name" : "...", "typeName" : "...", "isOptional" : true, "cardinality" : "LIST", "valuesMinCount" : 12345, "valuesMaxCount" : 12345, "isUnique" : true, "isIndexable" : true, "constraints" : [ { }, { } ] } ], "category" : "ENTITY", "guid" : "...", "createdBy" : "...", "updatedBy" : "...", "createTime" : 12345, "updateTime" : 12345, "version" : 12345, "name" : "...", "description" : "...", "typeVersion" : "...", "options" : { "property1" : "...", "property2" : "..." } } ], "empty" : true }   Best regards. ... 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