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: 1212
name: THE BIRMINGHAM (LAND TO REAR OF 26 MOOR GREEN LANE, MOSELEY) TPO 2007
tree-preservation-order: undefined
TPO 1212
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.896843 52.443177,-1.896893 52.443141,-1.896946 52.443084,-1.897313 52.442460,-1.896963 52.442372,-1.896491 52.443069,-1.896679 52.443112,-1.896786 52.443147,-1.896843 52.443177)))
point: POINT (-1.89691 52.442775)
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.