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: 1338
name: The BIRMINGHAM (3 THE COPSE, FOUR OAKS, SUTTON COLDFIELD) TPO 2010
tree-preservation-order: undefined
TPO 1338
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.838565 52.581640,-1.838316 52.581788,-1.838697 52.582016,-1.838741 52.581989,-1.838824 52.582037,-1.838892 52.582055,-1.839035 52.582115,-1.839519 52.582273,-1.839584 52.582320,-1.839658 52.582403,-1.839756 52.582475,-1.839797 52.582478,-1.839865 52.582441,-1.838565 52.581640)))
point: POINT (-1.838935 52.581981)
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.