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: 890
name: THE BIRMINGHAM (LAND AT REAR OF 320 HIGHFIELD ROAD AND SCOUT HALL, HIGHFIELD ROAD, HALL GREEN) TPO 1999
tree-preservation-order: undefined
TPO 890
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.855800 52.421511,-1.855816 52.421525,-1.856308 52.421406,-1.856319 52.421365,-1.856153 52.421178,-1.856199 52.421162,-1.856206 52.421170,-1.856442 52.421090,-1.856471 52.421133,-1.856810 52.421004,-1.856434 52.420821,-1.856100 52.420718,-1.855974 52.420780,-1.855864 52.420854,-1.855647 52.420931,-1.855320 52.421002,-1.855800 52.421511)))
point: POINT (-1.856016 52.421098)
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.