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: TPO1989_002_G_001
name: G1
tree-preservation-order: undefined
TPO1989_002
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-1.583946 53.841283,-1.584044 53.841304,-1.584135 53.841260,-1.584154 53.841235,-1.584149 53.841186,-1.584167 53.841154,-1.584175 53.841117,-1.584203 53.841094,-1.584345 53.841015,-1.584388 53.840977,-1.584564 53.840772,-1.584580 53.840737,-1.584568 53.840717,-1.584469 53.840639,-1.584416 53.840627,-1.584372 53.840635,-1.584218 53.840700,-1.584180 53.840743,-1.584149 53.840761,-1.584120 53.840796,-1.584112 53.840820,-1.584126 53.840886,-1.584093 53.840934,-1.583900 53.841047,-1.583849 53.841068,-1.583877 53.841093,-1.583968 53.841130,-1.583988 53.841155,-1.583992 53.841173,-1.583978 53.841200,-1.583920 53.841245,-1.583918 53.841271,-1.583946 53.841283)))
point: POINT (-1.584224 53.840937)
notes
entry-date: 2026-02-12
start-date: 1989-04-10
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.