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: TPO1969_001WTH_A_016
name: A16
tree-preservation-order: undefined
TPO1969_001WTH
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.343683 53.902525,-1.343752 53.902242,-1.344024 53.902265,-1.344107 53.901905,-1.344208 53.901259,-1.344298 53.900786,-1.344325 53.900582,-1.342906 53.900711,-1.342577 53.900753,-1.342584 53.900849,-1.342602 53.900934,-1.342602 53.901037,-1.342584 53.901118,-1.342542 53.901187,-1.342407 53.901337,-1.342372 53.901398,-1.342360 53.901471,-1.342392 53.901557,-1.342466 53.901651,-1.342739 53.901885,-1.342831 53.901978,-1.342880 53.902059,-1.342893 53.902147,-1.342878 53.902220,-1.342852 53.902276,-1.342836 53.902355,-1.342834 53.902390,-1.342852 53.902430,-1.342952 53.902535,-1.343657 53.902630,-1.343683 53.902525)))
point: POINT (-1.343391 53.901507)
notes
entry-date: 2026-02-12
start-date: 1969-08-07
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.