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: 1399
name: THE BIRMINGHAM (206 GRAVELLY HILL, ERDINGTON) TPO 2011
tree-preservation-order: undefined
TPO 1399
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.850593 52.514370,-1.850351 52.514296,-1.850042 52.514182,-1.849847 52.514281,-1.850324 52.514628,-1.850357 52.514638,-1.850390 52.514626,-1.850593 52.514370)))
point: POINT (-1.850236 52.514392)
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.