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: TPO634
name: 18/1975
tree-preservation-order: undefined
18/1975
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((0.595383 51.315452,0.595456 51.315587,0.595443 51.315609,0.595396 51.315647,0.595392 51.315677,0.595424 51.315741,0.595491 51.315823,0.595542 51.315813,0.596538 51.316729,0.596796 51.316842,0.597137 51.317037,0.597208 51.317146,0.597933 51.317792,0.597830 51.317799,0.597712 51.317876,0.597407 51.318046,0.597247 51.317879,0.597157 51.317813,0.597049 51.317750,0.596862 51.317657,0.596154 51.317363,0.595903 51.317238,0.595677 51.317089,0.595597 51.317021,0.595483 51.316828,0.595367 51.316688,0.595318 51.316551,0.595288 51.316509,0.595144 51.316344,0.595056 51.316269,0.594992 51.316190,0.594976 51.316182,0.594880 51.316084,0.594745 51.316010,0.594630 51.315922,0.594515 51.315851,0.594253 51.315730,0.594073 51.315628,0.593792 51.315492,0.593566 51.315372,0.593045 51.314974,0.593109 51.314907,0.593152 51.314874,0.593342 51.314762,0.593485 51.314702,0.593651 51.314654,0.594304 51.314507,0.594568 51.314437,0.594763 51.314625,0.595249 51.315246,0.595383 51.315452)))
point: POINT (0.595359 51.316083)
notes: Maidstone Borough Council Tree preservation Order No 18 1975
organisation
entry-date: 1976-01-26
start-date
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.