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: TPO1988_010_G_004
name: G4
tree-preservation-order: undefined
TPO1988_010
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-1.630777 53.834244,-1.630815 53.834297,-1.630988 53.834247,-1.631085 53.834184,-1.631124 53.834118,-1.631076 53.834011,-1.630965 53.833878,-1.630916 53.833863,-1.630975 53.833720,-1.631029 53.833692,-1.631097 53.833678,-1.631117 53.833529,-1.630986 53.833589,-1.630888 53.833666,-1.630833 53.833735,-1.630809 53.833813,-1.630807 53.833870,-1.630831 53.833941,-1.630856 53.833972,-1.630937 53.834043,-1.631034 53.834096,-1.631021 53.834139,-1.630998 53.834177,-1.630940 53.834208,-1.630842 53.834218,-1.630777 53.834244)))
point: POINT (-1.630958 53.83391)
notes
entry-date: 2026-02-12
start-date: 1988-09-27
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.