The Lease.billingDay field holds the billing day for a Lease record in Locker. It is a whole number stored on each Lease, and staff see and set it wherever Lease records are managed. Keeping billingDay accurate matters because the Lease is part of how Locker tracks occupancy, billing, and the delinquency-to-auction workflow for the facility.
Technical section
Data model, API, and internals — visible to developers.