Tree preservation zone

There is a problem

1000 entries with tree-preservation-order field must match the reference field in the tree preservation order dataset

reference: TPO1952_001WFD_W_018
name: W18
tree-preservation-order: undefined
TPO1952_001WFD
tree-preservation-zone-type: woodland
geometry: MULTIPOLYGON (((-1.649694 53.892337,-1.649804 53.892412,-1.650231 53.892631,-1.650513 53.892734,-1.652295 53.890699,-1.651996 53.890641,-1.651785 53.890609,-1.651400 53.890571,-1.651105 53.890571,-1.650982 53.890585,-1.650849 53.890614,-1.650738 53.890618,-1.650305 53.890498,-1.650162 53.890679,-1.650002 53.890900,-1.649635 53.891326,-1.649595 53.891390,-1.649551 53.891497,-1.650010 53.891588,-1.650284 53.891665,-1.650501 53.891748,-1.650718 53.891842,-1.650802 53.891897,-1.650849 53.891945,-1.650863 53.891998,-1.650860 53.892032,-1.650809 53.892111,-1.650733 53.892185,-1.650629 53.892264,-1.650467 53.892341,-1.650292 53.892389,-1.650181 53.892393,-1.650036 53.892370,-1.649694 53.892337)))
point: POINT (-1.650847 53.891316)
notes
entry-date: 2026-02-12
start-date: 1952-01-25
end-date

Your dataset is missing the tree-preservation-order column.

The Tree preservation zone guidance explains how to fix the issue:

The reference for the tree preservation order that covers this zone.