This documentation is archived and is not being maintained.

PidLidToDoOrdinalDate Canonical Property

This content is outdated and is no longer being maintained. It is provided as a courtesy for individuals who are still using these technologies. This page may contain URLs that were valid when originally published, but now link to sites or pages that no longer exist.

Determines the sort order of objects in a consolidated to-do list.

Associated properties:


Property set:


Long ID (LID):


Data type:




When an object is flagged, this property should be set to the current time in Coordinated Universal Time (UTC).

If the client allows a user to reorder tasks within the consolidated task list via dragging or other mechanisms, they can use any suitable algorithm to determine the new value of this property so that the task appears in the correct place when this property is used as a sorting field.

When this property is used to sort objects and the sort results in a tie, the dispidToDoSubOrdinal (PidLidToDoSubOrdinal) property is used as a tie breaker.

Protocol Specifications


Provides property set definitions and references to related Exchange Server protocol specifications.


Specifies the properties and operations related to flagging.

Header Files


Provides data type definitions.