This section will guide you through the core principles on how to us invoices within Procurement.
# Object Graph
┌─────────────────┐ ┌─────────────────┐ │ Contract │ │DeliveryLineItems│ └─────────────────┘ └─────────────────┘ ▲ ▲ Optional │ │ │ │ ┌─────────────────┐ ┌─────────────────┐ │ Invoice │◀─────│InvoiceLineItems │ └─────────────────┘ └─────────────────┘
# General Concept
The invoice feature within procurement is a simplification of a regular invoicing system and is not meant to replace proper invoices. Instead it shall be used as a way to inform customers (Consumers) about inbound invoices and their content. On top, because the Procurement platforms presents invoices in a well definite structure via API, it allows the consumer to analyse invoices and to optimize future orders.
# Suppliers - How to create an invoice
In order to create an invoice the POST /invoices (opens new window) endpoint needs to be used.