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: 772
name: THE BIRMINGHAM (LAND NEXT TO FIRE STATION BRISTOL ROAD, SELLY OAK) TPO 1997
tree-preservation-order: undefined
TPO 772
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.926323 52.446405,-1.926306 52.446419,-1.926084 52.446491,-1.925992 52.446511,-1.925714 52.446657,-1.925710 52.446677,-1.925928 52.446714,-1.925965 52.446777,-1.924626 52.446549,-1.924558 52.446540,-1.924558 52.446547,-1.924731 52.446840,-1.924985 52.446780,-1.925484 52.446827,-1.925961 52.446911,-1.926257 52.447397,-1.926888 52.447265,-1.926915 52.447306,-1.927621 52.447137,-1.927654 52.447121,-1.927655 52.447101,-1.927591 52.447120,-1.927495 52.447135,-1.927355 52.447125,-1.926857 52.446963,-1.926900 52.446899,-1.926841 52.446866,-1.926638 52.446813,-1.926447 52.446480,-1.926320 52.446400,-1.926323 52.446405)))
point: POINT (-1.926191 52.446901)
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.