PidTagStoreEntryId Canonical Property

Applies to: Outlook 2013 | Outlook 2016

Contains the unique entry identifier of the message store where an object resides.

Associated properties:
Data type:
ID properties


This property is used to open a message store with the IMAPISession::OpenMsgStore method. It is also used to open any object that is owned by the message store.

For a message store, this property is identical to the store's own PR_ENTRYID (PidTagEntryId) property. A client application can compare the two properties using the IMAPISession::CompareEntryIDs method.

Protocol specifications


Provides references to related Exchange Server protocol specifications.


Handles message and attachment objects.


Converts between IETF RFC2445, RFC2446, and RFC2447, and appointment and meeting objects.


Specifies the properties and operations related to flagging.


Shares mailbox folders between clients.

Header files


Provides data type definitions.


Contains definitions of properties listed as alternate names.

See also

MAPI Properties

MAPI Canonical Properties

Mapping Canonical Property Names to MAPI Names

Mapping MAPI Names to Canonical Property Names