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: 246
name: THE BIRMINGHAM (12 HARTOPP ROAD, FOUR OAKS, SUTTON COLDFIELD) TPO 1977
tree-preservation-order: undefined
TPO 246
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.841460 52.581572,-1.841273 52.581717,-1.841098 52.581839,-1.841472 52.582001,-1.841590 52.582060,-1.842073 52.582307,-1.842468 52.582526,-1.842729 52.582043,-1.843016 52.581730,-1.841782 52.581269,-1.841596 52.581452,-1.841460 52.581572)))
point: POINT (-1.8421 52.581852)
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.