{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/microsoft.graph.outlookItem",
  "title": "microsoft.graph.outlookItem",
  "allOf": [
    {
      "$ref": "#/components/schemas/microsoft.graph.entity"
    },
    {
      "title": "outlookItem",
      "required": [
        "@odata.type"
      ],
      "type": "object",
      "properties": {
        "categories": {
          "type": "array",
          "items": {
            "type": "string",
            "nullable": true
          },
          "description": "The categories associated with the item"
        },
        "changeKey": {
          "type": "string",
          "description": "Identifies the version of the item. Every time the item is changed, changeKey changes as well. This allows Exchange to apply changes to the correct version of the object. Read-only.",
          "nullable": true
        },
        "createdDateTime": {
          "pattern": "^[0-9]{4,}-(0[1-9]|1[012])-(0[1-9]|[12][0-9]|3[01])T([01][0-9]|2[0-3]):[0-5][0-9]:[0-5][0-9]([.][0-9]{1,12})?(Z|[+-][0-9][0-9]:[0-9][0-9])$",
          "type": "string",
          "description": "The Timestamp type represents date and time information using ISO 8601 format and is always in UTC time. For example, midnight UTC on Jan 1, 2014 is 2014-01-01T00:00:00Z",
          "format": "date-time",
          "nullable": true
        },
        "lastModifiedDateTime": {
          "pattern": "^[0-9]{4,}-(0[1-9]|1[012])-(0[1-9]|[12][0-9]|3[01])T([01][0-9]|2[0-3]):[0-5][0-9]:[0-5][0-9]([.][0-9]{1,12})?(Z|[+-][0-9][0-9]:[0-9][0-9])$",
          "type": "string",
          "description": "The Timestamp type represents date and time information using ISO 8601 format and is always in UTC time. For example, midnight UTC on Jan 1, 2014 is 2014-01-01T00:00:00Z",
          "format": "date-time",
          "nullable": true
        },
        "@odata.type": {
          "type": "string"
        }
      },
      "discriminator": {
        "propertyName": "@odata.type",
        "mapping": {
          "#microsoft.graph.contact": "#/components/schemas/microsoft.graph.contact",
          "#microsoft.graph.event": "#/components/schemas/microsoft.graph.event",
          "#microsoft.graph.message": "#/components/schemas/microsoft.graph.message",
          "#microsoft.graph.calendarSharingMessage": "#/components/schemas/microsoft.graph.calendarSharingMessage",
          "#microsoft.graph.eventMessage": "#/components/schemas/microsoft.graph.eventMessage",
          "#microsoft.graph.eventMessageRequest": "#/components/schemas/microsoft.graph.eventMessageRequest",
          "#microsoft.graph.eventMessageResponse": "#/components/schemas/microsoft.graph.eventMessageResponse",
          "#microsoft.graph.post": "#/components/schemas/microsoft.graph.post"
        }
      }
    }
  ]
}