ST0016 As a user I would like the Tableau report to include a new column "manifest_created"

[sabrine33]

The column should refer to the earliest date the manifest was created (sample_manifest.created event)

[sabrine33]

@TWJW-SANGER
While performing some sanity checks on the created manifest, I noticed a lot of rows with manifest_created = null, which do not make sense.
The current join between tables is done using the barcode (flat_events_view.subject_friendly_name = sample_flowcell_view.labware_human_barcode).
Additionally, I observed that in the flat_events_view, there are about 29,173 rows with role_type='labware', whereas in the report view, we have about 34,062 distinct plate barcodes.
is there any valid explanation for this?