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: 1025
name: THE BIRMINGHAM (LAND TO REAR OF 3 TO 21 PARK HILL ROAD, HARBORNE) TPO 2004
tree-preservation-order: undefined
TPO 1025
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.952089 52.459784,-1.951977 52.459742,-1.951282 52.460139,-1.951294 52.460180,-1.951549 52.460286,-1.951508 52.460310,-1.951574 52.460347,-1.951910 52.460135,-1.952027 52.460070,-1.952329 52.459874,-1.952089 52.459784)))
point: POINT (-1.951788 52.46003)
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.