Conservation area document

There is a problem

conservation-area column must match the reference field in the conservation area dataset

reference: CA4
conservation-area: undefined
SCC Historic Environment Record
name: Uplands Estate
documentation-url: https://www.southampton.gov.uk/conservation-areas/
document-url: https://www.southampton.gov.uk/media/ejhnecbn/uplands_estate_designguidance_1993_tcm63-363402.pdf
document-type: design-guidance
notes: Most buildings covered by Article 4 Direction. Nos 75, 77 & 91 to 113 (odds) Brookvale Rd, Nos 16-21 & 24-27 Glebe Court, Nos 2-5, 8-11, 14-17 Highfield Close, Nos 68-78 (evens) & 104-108 (evens) Highfield Lane, and No 18 Uplands Way are exempt.
entry-date: 1986-01-01
start-date: 1986-01-01
end-date

Your data is missing a conservation-area.

The Conservation area document guidance explains how to fix the issue:

The reference for the conservation area this document refers to, as used in the conservation area dataset.

Example: CA1