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: 203
name: THE BIRMINGHAM (WALMLEY ROAD/ WALMLEY ASH ROAD, SUTTON COLDFIELD) TPO 1969
tree-preservation-order: undefined
TPO 203
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.799180 52.539227,-1.800201 52.539245,-1.800202 52.539160,-1.800117 52.538835,-1.800080 52.538785,-1.799952 52.538709,-1.799742 52.538603,-1.799341 52.538469,-1.798901 52.539012,-1.798913 52.539019,-1.798662 52.539125,-1.798764 52.539203,-1.798783 52.539229,-1.798904 52.539463,-1.799243 52.539423,-1.799180 52.539227)))
point: POINT (-1.799471 52.538983)
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.