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: 982
name: THE BIRMINGHAM (34 AND 36 BLACKROOT ROAD AND 35 LADYWOOD ROAD, FOUR OAKS) TREE PRESERVATION ORDER 2003
tree-preservation-order: undefined
TPO 982
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.834547 52.574371,-1.835504 52.574300,-1.835476 52.574181,-1.836123 52.574157,-1.836083 52.574098,-1.836088 52.574067,-1.836110 52.574036,-1.836117 52.573990,-1.836091 52.573837,-1.836071 52.573815,-1.836024 52.573786,-1.835945 52.573762,-1.835874 52.573745,-1.835765 52.573745,-1.835306 52.573814,-1.835309 52.573821,-1.834471 52.573943,-1.834502 52.574074,-1.834547 52.574371)))
point: POINT (-1.835284 52.574052)
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.