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_G_013
name: G13
tree-preservation-order: undefined
TPO1952_001WFD
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-1.623338 53.888828,-1.623150 53.888604,-1.623068 53.888408,-1.623027 53.888393,-1.622987 53.888402,-1.622917 53.888623,-1.622862 53.888767,-1.622796 53.889006,-1.622762 53.889225,-1.622754 53.889301,-1.622756 53.889384,-1.622772 53.889473,-1.622806 53.889584,-1.622851 53.889689,-1.622910 53.889800,-1.623187 53.890141,-1.623260 53.890122,-1.623053 53.889854,-1.622982 53.889753,-1.622926 53.889650,-1.622892 53.889538,-1.622856 53.889331,-1.622852 53.889244,-1.622859 53.889115,-1.622903 53.888926,-1.622986 53.888635,-1.623025 53.888627,-1.623058 53.888644,-1.623236 53.888847,-1.623338 53.888828)))
point: POINT (-1.622968 53.889159)
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.