1 · Choose file—
2 · Match columns—
3 · Review
Rows are matched on PropertyID, so re-uploading an updated sheet refreshes
the pins that already exist instead of creating duplicates. Rows without a
PropertyID are always added as new.
Tell the app what each spreadsheet column means. Anything left as
Extra detail still gets stored and shown on the property, it just isn't
used for filtering or placing the pin.