---
updatedAt: 2025-09-08T20:09:42.000Z
agentTools:
  projectIndex: https://docs.fonoa.com/llms.txt
---

# Onboarding

Each transaction consists of at least two parties: Supplier and Customer. The Supplier is a company. On the other side of the transaction, the Customer can be an individual (B2C transaction) or a company (B2B transaction).To report invoices in real-time to a tax authority, you need to onboard the Supplier that participates in the transaction.