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: TPO1992_031_G_004
name: G4
tree-preservation-order: undefined
TPO1992_031
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-1.530588 53.829811,-1.530612 53.829786,-1.530625 53.829713,-1.530639 53.829282,-1.530630 53.829250,-1.530540 53.829232,-1.530511 53.829234,-1.530455 53.829268,-1.530356 53.829391,-1.530272 53.829459,-1.530069 53.829559,-1.530064 53.829582,-1.530093 53.829608,-1.530167 53.829627,-1.530204 53.829622,-1.530260 53.829578,-1.530288 53.829570,-1.530357 53.829571,-1.530396 53.829584,-1.530428 53.829613,-1.530445 53.829645,-1.530462 53.829744,-1.530483 53.829801,-1.530588 53.829811)))
point: POINT (-1.530456 53.82951)
notes
entry-date: 2026-02-12
start-date: 1992-07-17
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.