{{Incomplete}} marks a work as incomplete. It generally means that some parts of the work are not available on Wikisource in any form, either as text content or page scans. If possible, use a more specific template like those below.
{{No header}} - where the header information missing
{{No scan}} when the text is not backed by a scanned copy of the edition from which it was transcribed and no such scan of that edition is available yet on Commons
{{Migrate to}} when the work is ostensibly complete, but needs to be migrated to an existing page scan of the same edition. If the scans aren't at Wikisource yet, or the edition is different, use {{scans available}}.
{{Scans available}} - when scans are available, but do not have an index page yet. Use {{migrate to}} if the scans exist at Wikisource, and the edition is the same