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: TPO1985_015_A_001
name: A1
tree-preservation-order: undefined
TPO1985_015
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.527829 53.829969,-1.527841 53.829977,-1.527962 53.829917,-1.527894 53.829828,-1.527943 53.829817,-1.527954 53.829833,-1.528170 53.829791,-1.528200 53.829838,-1.528322 53.829809,-1.528196 53.829615,-1.528258 53.829597,-1.528016 53.829246,-1.528244 53.829156,-1.528309 53.829120,-1.528339 53.829088,-1.528484 53.829084,-1.528435 53.828993,-1.528459 53.828989,-1.528444 53.828955,-1.528461 53.828952,-1.528450 53.828926,-1.528502 53.828918,-1.528491 53.828888,-1.528095 53.828895,-1.527772 53.828922,-1.527660 53.828940,-1.527243 53.829042,-1.527068 53.829104,-1.526946 53.829161,-1.527078 53.829244,-1.527689 53.829711,-1.527830 53.829836,-1.527829 53.829969)))
point: POINT (-1.527787 53.829313)
notes
entry-date: 2026-02-12
start-date: 1985-08-13
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.