Conservation area

There is a problem

reference: 6055
name: Brusselton
designation-date: 1993-01-01
document-url
documentation-url: https://www.durham.gov.uk/conservationareas
geometry: MULTIPOLYGON (((-1.676124 54.625483,-1.676192 54.625408,-1.674676 54.625157,-1.673683 54.624976,-1.673436 54.624906,-1.673110 54.624856,-1.672229 54.624769,-1.670487 54.624514,-1.669044 54.624100,-1.669130 54.623889,-1.669175 54.623651,-1.668409 54.623416,-1.668218 54.623958,-1.665651 54.623903,-1.665450 54.623533,-1.665374 54.623543,-1.665561 54.623898,-1.665641 54.624070,-1.668002 54.624406,-1.668854 54.624507,-1.669360 54.624535,-1.670000 54.624591,-1.670443 54.624616,-1.670559 54.624643,-1.672268 54.624936,-1.673076 54.625093,-1.673182 54.625132,-1.673751 54.625189,-1.673899 54.625193,-1.674543 54.625244,-1.674749 54.625267,-1.676124 54.625483)))
point: POINT (-1.669616 54.624369)
notes: No Appraisal document.
organisation
entry-date: entry-date must be a real date
2025-04-01
start-date: 1993-01-01
end-date

Your dataset is missing the entry-date column.

The Conservation area guidance explains how to fix the issue:

The date the record was last updated.

If the entity has never been updated, enter the same date as start-date.

Write in YYYY-MM-DD format.

Example:

2022-12-20

With dates, some data is better than no data, so: