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: TPO1998_041_G_002
name: G2
tree-preservation-order: undefined
TPO1998_041
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-1.461453 53.830702,-1.461536 53.830684,-1.461588 53.830654,-1.461632 53.830620,-1.461645 53.830598,-1.461672 53.830586,-1.461788 53.830567,-1.461831 53.830550,-1.461868 53.830520,-1.461872 53.830497,-1.461817 53.830464,-1.461772 53.830457,-1.461707 53.830469,-1.461640 53.830497,-1.461550 53.830554,-1.461475 53.830557,-1.461393 53.830572,-1.461341 53.830593,-1.461308 53.830626,-1.461307 53.830647,-1.461320 53.830670,-1.461363 53.830699,-1.461398 53.830707,-1.461453 53.830702)))
point: POINT (-1.461575 53.830585)
notes
entry-date: 2026-02-12
start-date: 1998-10-21
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.