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: 785
name: THE BIRMINGHAM (HOLY TRINITY CHURCH, TRINITY HILL, SUTTON COLDFIELD) TPO 1998
tree-preservation-order: undefined
TPO 785
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.821555 52.564603,-1.821567 52.564612,-1.821755 52.564542,-1.821762 52.564550,-1.822175 52.564420,-1.822034 52.564302,-1.821864 52.564133,-1.821832 52.564117,-1.821768 52.564098,-1.821532 52.564057,-1.821249 52.563971,-1.821193 52.563998,-1.821176 52.564018,-1.821175 52.564050,-1.821223 52.564195,-1.821399 52.564450,-1.821555 52.564603)))
point: POINT (-1.821624 52.564291)
notes: The shaded area represents those properties which fall within the outline of a Tree Preservation Order. To precisely identify trees protected by the Order, you can request a copy of the tree preservation order at the following link.
organisation
entry-date: 2025-11-30
start-date
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.