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: 500
name: THE BIRMINGHAM (LAND AT DUNTON CLOSE, FOUR OAKS, SUTTON COLDFIELD) TPO 1987
tree-preservation-order: undefined
TPO 500
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.832633 52.595297,-1.832221 52.595342,-1.832013 52.595382,-1.831299 52.595460,-1.831057 52.595501,-1.830965 52.595712,-1.831105 52.595714,-1.831099 52.595963,-1.831110 52.596212,-1.831102 52.596424,-1.831991 52.596415,-1.832125 52.596399,-1.832134 52.596445,-1.832041 52.597436,-1.834713 52.597507,-1.834692 52.597446,-1.833670 52.596379,-1.834404 52.596273,-1.834479 52.596255,-1.834611 52.596190,-1.834583 52.596159,-1.834472 52.596202,-1.834334 52.596235,-1.834004 52.596285,-1.833641 52.596316,-1.833260 52.595864,-1.833242 52.595869,-1.833195 52.595815,-1.832821 52.595880,-1.832700 52.595592,-1.832671 52.595598,-1.832633 52.595297)))
point: POINT (-1.832709 52.596487)
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.