Conservation area

There is a problem

reference: 6083
name: Hett
designation-date: 1977-01-01
document-url
documentation-url: https://www.durham.gov.uk/conservationareas
geometry: MULTIPOLYGON (((-1.554993 54.719177,-1.555207 54.720598,-1.555130 54.721987,-1.555124 54.722522,-1.555740 54.722584,-1.555884 54.723416,-1.555807 54.724181,-1.555862 54.725407,-1.555550 54.725881,-1.555232 54.726712,-1.555060 54.727004,-1.557786 54.727931,-1.558830 54.728276,-1.559408 54.728014,-1.560141 54.728482,-1.560946 54.728845,-1.562095 54.728968,-1.563169 54.728942,-1.565780 54.728626,-1.566680 54.728141,-1.566180 54.727044,-1.569759 54.727043,-1.569840 54.726703,-1.572882 54.726669,-1.573252 54.726568,-1.573600 54.726434,-1.571783 54.724691,-1.571068 54.724303,-1.570918 54.723976,-1.570715 54.723708,-1.570515 54.723257,-1.570241 54.722576,-1.569911 54.722338,-1.569808 54.722129,-1.569767 54.721509,-1.570077 54.721170,-1.566644 54.720365,-1.566029 54.720303,-1.563981 54.720023,-1.563933 54.719553,-1.560920 54.719435,-1.554993 54.719177)))
point: POINT (-1.562824 54.724021)
notes: No Appraisal document.
organisation
entry-date: entry-date must be a real date
2025-04-01
start-date: 1977-01-01
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: