Current state: Invoices are sent about a week after job completion.

Frozen rule: All completed jobs invoiced within three calendar days, sustained inside 30 to 45 days.

Actions: The field owner marks job complete on site; the admin owner issues the invoice in the same daily window.

Verification: Weekly snapshots from the AR aging you already run.

Expected movement: Cash pulled forward and realised margin lift, visible in your standard readout.

Decision: Day‑30 pass or tighten. No system changes.

This is an example model, not a past engagement