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: TPO1989_045_G_006
name: G6
tree-preservation-order: undefined
TPO1989_045
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-1.589570 53.854275,-1.589555 53.854261,-1.589510 53.854248,-1.589510 53.854237,-1.589482 53.854227,-1.589587 53.854196,-1.589659 53.854153,-1.589644 53.854131,-1.589615 53.854125,-1.589623 53.854106,-1.589703 53.854061,-1.589719 53.854035,-1.589718 53.854013,-1.589684 53.854001,-1.589552 53.854061,-1.589558 53.854094,-1.589538 53.854110,-1.589511 53.854115,-1.589511 53.854137,-1.589539 53.854141,-1.589570 53.854158,-1.589546 53.854173,-1.589511 53.854178,-1.589477 53.854195,-1.589387 53.854202,-1.589266 53.854235,-1.588974 53.854278,-1.588974 53.854295,-1.589174 53.854313,-1.589194 53.854292,-1.589200 53.854271,-1.589341 53.854245,-1.589405 53.854272,-1.589437 53.854252,-1.589452 53.854277,-1.589538 53.854295,-1.589556 53.854297,-1.589577 53.854281,-1.589570 53.854275)))
point: POINT (-1.589436 53.85419)
notes
entry-date: 2026-02-12
start-date: 1989-10-11
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.