Used as beginning of date range filter. If specified, filters the returned messages to only those with a creation date greater than or equal to the specified date and time.
For CEM messages, StartCreationTime and EndCreationTime must be provided.
For ASQ messages, either the ItemID, or a date range (specified with StartCreationTime and EndCreationTime), or both must be included.
See the
Field Index to learn which calls use StartCreationTime.