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_005_G_006
name: G6
tree-preservation-order: undefined
TPO1989_005
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-1.581296 53.845074,-1.581289 53.845073,-1.580764 53.845500,-1.580626 53.845642,-1.580509 53.845795,-1.580462 53.845884,-1.580440 53.845997,-1.580395 53.846374,-1.580418 53.846382,-1.580425 53.846403,-1.580486 53.846401,-1.580543 53.846389,-1.580626 53.846355,-1.580693 53.846312,-1.580719 53.846210,-1.580660 53.845890,-1.580742 53.845825,-1.580903 53.845769,-1.580991 53.845704,-1.581028 53.845641,-1.581093 53.845567,-1.581278 53.845290,-1.581314 53.845245,-1.581470 53.845104,-1.581296 53.845074)))
point: POINT (-1.58081 53.845732)
notes
entry-date: 2026-02-12
start-date: 1989-02-07
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.