# Invoice-processing agents

> Receive invoices and attachments, extract fields, request missing information, and preserve the audit trail.

## Problem

Invoices arrive as messages and files, but most automation starts after a person manually moves them into another system.

## Reference workflow

1. Receive invoices directly in a dedicated mailbox.
2. Store attachment bytes outside the transactional database.
3. Extract vendor, amount, due date, and purchase-order references.
4. Draft exceptions for human approval before payment workflows continue.

## AgentMailer model

Provision a persistent mailbox and A2A endpoint together. The agent receives scoped credentials, complete thread context, workspace isolation, and realtime events without borrowing a person's account.

Canonical URL: https://agentmailer.ai/use-cases/invoice-processing