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: 806
name: THE BIRMINGHAM (101-119 STATION ROAD, WYLDE GREEN) TPO 1998
tree-preservation-order: undefined
TPO 806
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.829989 52.545544,-1.830981 52.545299,-1.831071 52.545276,-1.830887 52.544995,-1.829816 52.545249,-1.829853 52.545351,-1.829981 52.545546,-1.829989 52.545544)))
point: POINT (-1.830432 52.545269)
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.