From the person who needs it to the invoice that matches.

Demand arrives from a person, a reorder level, a production plan, or a sales order. It is approved by value and tested against the budget on its cost centre.

One RFQ goes to several suppliers, each answers on their own portal, and the quotations are compared line by line before the award — which can be split.

The purchase order carries rates, taxes, payment schedule, and required dates forward. Blanket agreements are drawn against rather than renegotiated.

Goods in with accepted and rejected split and inspection where required, then order against receipt against invoice — with only the mismatches reaching a person.