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: TPO1992_030_G_002
name: G2
tree-preservation-order: undefined
TPO1992_030
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-1.483596 53.832775,-1.483623 53.832816,-1.483670 53.832831,-1.483842 53.832839,-1.483899 53.832810,-1.483923 53.832665,-1.483971 53.832471,-1.484011 53.832347,-1.484190 53.832194,-1.484374 53.832021,-1.484455 53.831962,-1.484594 53.831879,-1.484948 53.831719,-1.485049 53.831707,-1.485133 53.831682,-1.485366 53.831582,-1.485329 53.831553,-1.485336 53.831550,-1.485231 53.831558,-1.484891 53.831699,-1.484561 53.831859,-1.484429 53.831940,-1.484285 53.832049,-1.484127 53.832193,-1.483997 53.832292,-1.483666 53.832458,-1.483624 53.832492,-1.483608 53.832536,-1.483634 53.832646,-1.483631 53.832689,-1.483619 53.832740,-1.483596 53.832775)))
point: POINT (-1.484105 53.832345)
notes
entry-date: 2026-02-12
start-date: 1992-07-17
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.