Page History

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Is incremental indexing supported by the connector?

Yes. At the moment, this is done by accessing SharePoint Online changes database directly, so after a full scan the connector will only fetch objects that changes in a given date range (since the last scan and the current scan).

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For a discussion on crawling, see here.

Why does hierarchy differ when using snapshots in crawls?

Snapshots store the full status of items during full crawls.  By contrast, not using snapshots means that change information will be taken from the SharePoint change log, which in some cases doesn't provide all information such as deletes.  This behavior is expected.

General