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: 1307
name: THE BIRMINGHAM (9 - 23 ALLENS CROFT ROAD, KINGS HEATH) TPO 2009
tree-preservation-order: undefined
TPO 1307
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.910291 52.424957,-1.909996 52.425270,-1.909811 52.425469,-1.910307 52.425640,-1.910864 52.425128,-1.910768 52.425094,-1.910746 52.425108,-1.910685 52.425110,-1.910625 52.425074,-1.910291 52.424957)))
point: POINT (-1.91032 52.425298)
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.