Which deliveries are going to be disputed, before the invoice goes out?

Orders go out to sites, not to shops. Sites move, contacts change, and the person receiving is whoever happens to be there.

A delivery arrives and nobody signs for the right quantity. The dispute surfaces at payment, weeks later, with no proof either way.

Delivery is confirmed on a phone at the site with quantity, time and who received it.

Material sits at the plant, at a depot, at a dealer and sometimes at a site.

Each location keeps its own count. Nobody has the combined position, so you buy material you already have and stock out on material you thought you had.

Every movement records its location, so the combined position is one screen.

A dealer is over his limit. An order is taken because the salesman needs the number and the office is closed.

By the time credit control sees it, the material has left and the exposure is real rather than theoretical.

Credit status sits on the order, so despatch cannot proceed on an unapproved exception.