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: 943
name: THE BIRMINGHAM (PLOT 1, 27 BLACKROOT ROAD, SUTTON COLDFIELD) TPO 2005
tree-preservation-order: undefined
TPO 943
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.835826 52.572627,-1.835279 52.572622,-1.835210 52.573134,-1.835515 52.573201,-1.835729 52.573213,-1.835789 52.573618,-1.835842 52.573602,-1.835880 52.573616,-1.835877 52.573454,-1.835962 52.573452,-1.835907 52.572881,-1.835834 52.572669,-1.835826 52.572627)))
point: POINT (-1.835617 52.572991)
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.