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: 1223
name: THE BIRMINGHAM (61 - 69 PENNS LANE, SUTTON COLDFIELD) TPO 2007
tree-preservation-order: undefined
TPO 1223
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.822342 52.536330,-1.822077 52.536302,-1.821720 52.536250,-1.821328 52.536175,-1.821187 52.536398,-1.820922 52.537083,-1.820835 52.537065,-1.820728 52.537198,-1.820849 52.537211,-1.820863 52.537167,-1.821939 52.537232,-1.822342 52.536330)))
point: POINT (-1.821593 52.536733)
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.