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: 1990/004.G7
name: Former Wills Factory
tree-preservation-order: undefined
1990/004
tree-preservation-zone-type: group
geometry: MULTIPOLYGON (((-1.564600 54.998657,-1.565199 54.998477,-1.565242 54.998454,-1.565250 54.998435,-1.565246 54.998413,-1.565223 54.998383,-1.565197 54.998366,-1.565128 54.998348,-1.565060 54.998356,-1.564670 54.998414,-1.564600 54.998422,-1.564561 54.998423,-1.564533 54.998417,-1.564493 54.998413,-1.564435 54.998394,-1.564231 54.998312,-1.564189 54.998302,-1.564116 54.998306,-1.564074 54.998312,-1.564049 54.998322,-1.564023 54.998349,-1.564015 54.998383,-1.564028 54.998419,-1.564056 54.998448,-1.564254 54.998533,-1.564369 54.998574,-1.564483 54.998612,-1.564576 54.998640,-1.564600 54.998657)))
point: POINT (-1.56461 54.998468)
notes: These data are update live via a feed to NCC's Tree Managament System, EzyTreev
entry-date: 2022-07-01
start-date: 1990-01-01
end-date

Your data is missing a tree-preservation-order.

The Tree preservation zone guidance explains how to fix the issue:

The reference for the tree preservation order that covers this zone.