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: 759
name: THE BIRMINGHAM (STAPLE LODGE ROAD/SLINGFIELD ROAD, NORTHFIELD) TPO 1997
tree-preservation-order: undefined
TPO 759
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.954339 52.405207,-1.954144 52.404791,-1.954122 52.404730,-1.954108 52.404645,-1.954112 52.404518,-1.954208 52.403911,-1.954979 52.403881,-1.955348 52.403810,-1.954993 52.403050,-1.954969 52.403019,-1.954916 52.402989,-1.954852 52.402974,-1.954628 52.402960,-1.954333 52.402963,-1.954327 52.402916,-1.954307 52.402860,-1.954243 52.402763,-1.953859 52.402352,-1.953855 52.402333,-1.953824 52.402333,-1.953657 52.403370,-1.953532 52.403483,-1.953456 52.403886,-1.953438 52.404542,-1.953386 52.405048,-1.953345 52.405050,-1.953322 52.405070,-1.953283 52.405320,-1.953214 52.405527,-1.953231 52.405563,-1.953540 52.405453,-1.953897 52.405362,-1.954257 52.405282,-1.954339 52.405207)))
point: POINT (-1.954091 52.403926)
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.