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: 1230
name: THE BIRMINGHAM (MERRITTS HILL, BARTLEY GREEN) TPO 2008
tree-preservation-order: undefined
TPO 1230
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.986535 52.425618,-1.986453 52.425918,-1.986371 52.426158,-1.986632 52.426189,-1.986673 52.426184,-1.986667 52.426176,-1.987520 52.426220,-1.987563 52.426213,-1.987743 52.426123,-1.987816 52.426075,-1.987870 52.426027,-1.987852 52.426012,-1.988091 52.425577,-1.987877 52.425581,-1.987221 52.425625,-1.986744 52.425630,-1.986535 52.425618)))
point: POINT (-1.987202 52.425894)
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.