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: 692
name: THE BIRMINGHAM (DUNKERY MANOR DRIVE, SUTTON COLDFIELD) TPO 1995
tree-preservation-order: undefined
TPO 692
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.830926 52.559931,-1.830573 52.559887,-1.830438 52.560187,-1.830286 52.560243,-1.830379 52.560333,-1.830441 52.560344,-1.830446 52.560369,-1.830628 52.560504,-1.830665 52.560544,-1.830722 52.560546,-1.830770 52.560559,-1.830769 52.560510,-1.830738 52.560410,-1.830750 52.560364,-1.830767 52.560362,-1.830926 52.559931)))
point: POINT (-1.830641 52.560191)
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.