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: 1318
name: THE BIRMINGHAM (LAND ADJOINING 2 WYNFIELD GARDENS, KINGS HEATH) TPO 2009
tree-preservation-order: undefined
TPO 1318
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.891009 52.420367,-1.891094 52.420653,-1.891182 52.420634,-1.891196 52.420657,-1.891209 52.420660,-1.891218 52.420686,-1.891209 52.420690,-1.891237 52.420766,-1.891573 52.420713,-1.891552 52.420668,-1.891498 52.420411,-1.891371 52.420349,-1.891009 52.420367)))
point: POINT (-1.891299 52.420541)
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.