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: TPO1971_001OTL_A_006
name: A6
tree-preservation-order: undefined
TPO1971_001OTL
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.697609 53.906962,-1.697012 53.907375,-1.696746 53.907572,-1.696623 53.907677,-1.695745 53.908521,-1.695643 53.908608,-1.695557 53.908664,-1.695538 53.908695,-1.695589 53.908706,-1.695777 53.908552,-1.695938 53.908401,-1.696134 53.908201,-1.696434 53.907920,-1.696808 53.907588,-1.697156 53.907334,-1.697470 53.907130,-1.697754 53.906927,-1.698081 53.906735,-1.698192 53.906616,-1.698330 53.906432,-1.698542 53.906201,-1.698603 53.906119,-1.698661 53.906016,-1.698741 53.905934,-1.698932 53.905783,-1.699306 53.905551,-1.699669 53.905351,-1.700201 53.905084,-1.700693 53.904943,-1.700611 53.904878,-1.700335 53.904950,-1.700090 53.905037,-1.699683 53.905235,-1.699345 53.905429,-1.699161 53.905563,-1.698877 53.905724,-1.698790 53.905787,-1.698653 53.905928,-1.698515 53.906086,-1.698366 53.906296,-1.698202 53.906490,-1.698067 53.906597,-1.697869 53.906772,-1.697609 53.906962)))
point: POINT (-1.698366 53.906371)
notes
entry-date: 2026-02-12
start-date: 1971-07-29
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.