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: T2-173-W1
name: The Southampton (Monks Brook) TPO 1990
tree-preservation-order: undefined
T2-173
tree-preservation-zone-type: woodland
geometry: MULTIPOLYGON (((-1.375730 50.939164,-1.375633 50.939121,-1.374666 50.939116,-1.374650 50.939192,-1.374560 50.939191,-1.374553 50.939120,-1.374546 50.939082,-1.374335 50.939076,-1.374237 50.939071,-1.374072 50.939078,-1.374069 50.939184,-1.374007 50.939308,-1.373914 50.939464,-1.373906 50.939493,-1.373921 50.939527,-1.373958 50.939584,-1.374107 50.939728,-1.374211 50.939871,-1.374329 50.940072,-1.374453 50.940402,-1.374757 50.940223,-1.374614 50.940212,-1.374646 50.940065,-1.374880 50.940075,-1.374971 50.939892,-1.374965 50.939890,-1.374988 50.939833,-1.374975 50.939833,-1.374928 50.939825,-1.374990 50.939717,-1.375070 50.939623,-1.375098 50.939585,-1.375173 50.939590,-1.375173 50.939638,-1.375708 50.939703,-1.375730 50.939164)))
point: POINT (-1.374763 50.939541)
notes
entry-date: 2026-07-28
start-date
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.