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ItemId

Last modified: October 13, 2012

Applies to: Exchange Online | Exchange Server 2007 | Exchange Server 2010 | Exchange Server 2013 | Office 365

The ItemId element contains the unique identifier and change key of an item in the Exchange store.


<ItemId Id="" ChangeKey="" />

ItemIdType

The following sections describe attributes, child elements, and parent elements.

Attributes

Attribute

Description

Id

Identifies a specific item in the Exchange store. Id is case-sensitive; therefore, comparisons between Ids must be case-sensitive or binary.

ChangeKey

Identifies a specific version of an item. A ChangeKey is required for the following scenarios:

  • The UpdateItem element requires a ChangeKey if the ConflictResolution attribute is set to AutoResolve. AutoResolve is a default value. If the ChangeKey attribute is not included, the response will return a ResponseCode value equal to ErrorChangeKeyRequired.

  • The SendItem element requires a ChangeKey to test whether the attempted operation will act upon the most recent version of an item. If the ChangeKey attribute is not included in the ItemId or if the ChangeKey is empty, the response will return a ResponseCode value equal to ErrorStaleObject.

Child elements

None.

Parent elements

Element

Description

CalendarItem

Represents an Exchange calendar item.

Contact

Represents an Exchange contact item.

CopiedEvent

Represents an event when an item or folder is copied.

CreatedEvent

Represents an event when an item or folder is created.

Delete (ItemSync)

Identifies a single item to delete in the local client store.

DeletedEvent

Represents an event when an item or folder is deleted.

DistributionList

Represents a distribution list.

ExportItemsResponseMessage

Contains the status and results of a request to export a single mailbox item.

FirstOccurrence

Represents the first occurrence of a recurring calendar item.

GlobalItemIds

Contains the collection of item identifiers for all conversation items in a mailbox.

Ignore

Identifies items to skip during synchronization.

Item

Represents a generic Exchange item.

Item (UploadItemType)

Represents a single item to upload into a mailbox.

ItemChange

Contains an item identifier and the updates to apply to the item.

The following is the XPath expression to this element: 

/UpdateItem/ItemChanges/ItemChange[i]

ItemIds

Contains the unique identities of items, occurrence items, and recurring master items used to delete, send, get, move, or copy items in the Exchange store.

The following are the XPath expressions to this element:

  • /DeleteItem/ItemIds

  • /SendItem/ItemIds

  • /GetItem/ItemIds

  • /MoveItem/ItemIds

  • /CopyItem//ItemIds

ItemIds (NonEmptyArrayOfItemIdsType)

Contains an array of item identifiers that identify the items to export from a mailbox.

LastOccurrence

Represents the last occurrence of a recurring calendar item.

Mailbox

Identifies a mail-enabled Active Directory directory service object.

MeetingCancellation

Represents a meeting cancellation in the Exchange store.

MeetingMessage

Represents a meeting in the Exchange store.

MeetingRequest

Represents a meeting request in the Exchange store.

MeetingResponse

Represents a meeting response in the Exchange store.

Message

Represents an Exchange e-mail message.

ModifiedEvent

Represents an event that occurs when an item is modified.

MovedEvent

Represents an event that occurs when an item is moved from one parent folder to another parent folder.

NewMailEvent

Represents an event that is triggered by a new mail item in a mailbox.

Occurrence

Represents a single modified occurrence of a recurring calendar item.

PlayOnPhone (Exchange Web Services)

Represents a request to read an item on a telephone.

RemoveItem

Removes an item from the Exchange store.

RoomList

Represents an e-mail address that identifies a list of meeting rooms.

Task

Represents a task in the Exchange store.

UploadItemsResponseMessage

Contains the status and results of a request to upload a single mailbox item.

UserConfiguration

Defines a single user configuration object.

The schema that describes this element is located in the IIS virtual directory that hosts Exchange Web Services.

Namespace

http://schemas.microsoft.com/exchange/services/2006/types

Schema Name

Types schema

Validation File

Types.xsd

Can be Empty

False

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