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: TPO1999_042_W_001
name: W1
tree-preservation-order: undefined
TPO1999_042
tree-preservation-zone-type: woodland
geometry: MULTIPOLYGON (((-1.621204 53.775942,-1.621176 53.775921,-1.621159 53.775921,-1.621069 53.775927,-1.620690 53.775979,-1.620470 53.775988,-1.620275 53.775984,-1.620272 53.775954,-1.620097 53.775637,-1.619879 53.775733,-1.619821 53.775771,-1.619916 53.775829,-1.619935 53.775864,-1.619981 53.775872,-1.620008 53.775891,-1.619995 53.775911,-1.620007 53.775931,-1.620081 53.775940,-1.620137 53.775967,-1.620086 53.775990,-1.619943 53.775985,-1.619909 53.776003,-1.619923 53.776023,-1.619771 53.776079,-1.619504 53.776158,-1.619466 53.776149,-1.619443 53.776037,-1.619446 53.775970,-1.619406 53.775916,-1.619121 53.776021,-1.619318 53.776435,-1.619751 53.776425,-1.619922 53.776403,-1.620107 53.776361,-1.620315 53.776296,-1.620406 53.776245,-1.620488 53.776235,-1.620929 53.776109,-1.621081 53.776052,-1.621205 53.775994,-1.621231 53.775971,-1.621204 53.775942)))
point: POINT (-1.620023 53.776123)
notes
entry-date: 2026-02-12
start-date: 1999-10-18
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.