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: 589
name: THE BIRMINGHAM (REAR OF No. 174 WEOLEY PARK ROAD, SELLY OAK) TPO 1992
tree-preservation-order: undefined
TPO 589
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.958809 52.438220,-1.958788 52.437920,-1.958770 52.437808,-1.959014 52.437791,-1.958997 52.437517,-1.958536 52.437524,-1.958038 52.437544,-1.958058 52.437835,-1.958243 52.437831,-1.958277 52.438243,-1.958809 52.438220)))
point: POINT (-1.958524 52.437829)
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.