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: 797
name: THE BIRMINGHAM (LAND TO THE REAR OF 15 BARKER ROAD, SUTTON COLDFIELD) TPO 1998
tree-preservation-order: undefined
TPO 797
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.828392 52.572839,-1.828166 52.572844,-1.828259 52.573329,-1.827270 52.573386,-1.827516 52.574013,-1.828638 52.573931,-1.829957 52.573846,-1.829823 52.573524,-1.829724 52.573233,-1.828475 52.573310,-1.828438 52.573186,-1.828473 52.573183,-1.828392 52.572839)))
point: POINT (-1.828591 52.573583)
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.