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: 868
name: THE BIRMINGHAM (LAND AT WAITROSE SUPERMARKET, BELLWELL LANE, SUTTON COLDFIELD) TPO 1999
tree-preservation-order: undefined
TPO 868
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.830986 52.587635,-1.831072 52.587781,-1.831216 52.587942,-1.831378 52.587971,-1.831518 52.588051,-1.831726 52.588255,-1.832096 52.588665,-1.832601 52.588249,-1.832175 52.587848,-1.832117 52.587756,-1.831754 52.587373,-1.831128 52.587538,-1.831076 52.587571,-1.831068 52.587596,-1.831074 52.587613,-1.830986 52.587635)))
point: POINT (-1.831817 52.587957)
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.