Conservation area

There is a problem

reference: 3946
name: Parkfields
designation-date: 1989-08-01
document-url: https://www.wandsworth.gov.uk/media/1669/parkfields_conservation_area.pdf
documentation-url: https://www.wandsworth.gov.uk/planning-and-building-control/building-conservation-and-design/conservation-areas/conservation-area-appraisals/
geometry: MULTIPOLYGON (((-0.225515 51.463579,-0.225618 51.462871,-0.226105 51.462923,-0.226117 51.462870,-0.226969 51.462970,-0.227422 51.463031,-0.227492 51.462472,-0.227529 51.462100,-0.227535 51.461752,-0.227454 51.461753,-0.227443 51.461728,-0.227402 51.461729,-0.227376 51.461433,-0.226636 51.461451,-0.226666 51.462028,-0.226642 51.462627,-0.226287 51.462623,-0.226289 51.462548,-0.226047 51.462530,-0.226041 51.462716,-0.226010 51.462858,-0.225624 51.462818,-0.224335 51.462720,-0.223529 51.462642,-0.222724 51.462508,-0.222628 51.462488,-0.222486 51.462443,-0.222172 51.462728,-0.222698 51.462907,-0.222693 51.462924,-0.222964 51.463008,-0.223122 51.463046,-0.223505 51.463158,-0.224571 51.463422,-0.225050 51.463526,-0.225050 51.463535,-0.225278 51.463584,-0.225507 51.463631,-0.225515 51.463579)))
point: POINT (-0.225376 51.462689)
notes: Appraisal
organisation
entry-date: entry-date must be a real date
2025-04-01
start-date: 1969-08-01
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: