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: TPO1996_078_W_001
name: W1
tree-preservation-order: undefined
TPO1996_078
tree-preservation-zone-type: woodland
geometry: MULTIPOLYGON (((-1.530806 53.846180,-1.530911 53.846181,-1.531781 53.845612,-1.531800 53.845576,-1.531804 53.845352,-1.531750 53.845022,-1.531727 53.844985,-1.531661 53.844964,-1.531557 53.844957,-1.531440 53.844980,-1.531425 53.844990,-1.531418 53.845008,-1.531441 53.845043,-1.531563 53.845110,-1.531599 53.845139,-1.531628 53.845182,-1.531643 53.845249,-1.531655 53.845441,-1.531643 53.845488,-1.531618 53.845528,-1.531570 53.845576,-1.530754 53.846026,-1.530565 53.846179,-1.530806 53.846180)))
point: POINT (-1.531354 53.845659)
notes
entry-date: 2026-02-12
start-date: 1996-10-07
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.