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_023_G_033
name: G33
tree-preservation-order: undefined
TPO1985_023
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-1.437470 53.763730,-1.437429 53.763689,-1.437414 53.763704,-1.437082 53.763558,-1.436950 53.763512,-1.436693 53.763442,-1.436627 53.763435,-1.436592 53.763444,-1.436589 53.763466,-1.436603 53.763497,-1.436635 53.763536,-1.436704 53.763566,-1.436796 53.763583,-1.436928 53.763662,-1.437523 53.763908,-1.437850 53.764062,-1.438087 53.764190,-1.438257 53.764296,-1.438413 53.764416,-1.438636 53.764630,-1.438822 53.764886,-1.438855 53.764896,-1.438887 53.764890,-1.438952 53.764864,-1.438978 53.764834,-1.438965 53.764787,-1.438847 53.764623,-1.438607 53.764396,-1.438413 53.764226,-1.438387 53.764181,-1.438282 53.764118,-1.438086 53.764018,-1.437593 53.763796,-1.437470 53.763730)))
point: POINT (-1.437897 53.764082)
notes
entry-date: 2026-02-12
start-date: 1985-10-08
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.