# Get started

A short sequence for your first weeks in Cortena.

- [Welcome to Cortena](https://help.cortena.ai/guides/get-started/welcome): What Cortena does, how agents fit in, and where to start.
- [How agents work](https://help.cortena.ai/guides/get-started/how-agents-work): Agents read, code, and propose bookings. You stay in control.
- [How Cortena reads an invoice](https://help.cortena.ai/guides/get-started/how-cortena-reads-an-invoice): From capture to coded lines: fields, VAT, and confidence.
- [Connecting your accounting system](https://help.cortena.ai/guides/get-started/connecting-accounting): Pick DATEV, Exact Online, Twinfield, or Agicap and go live.
- [Matching guidelines](https://help.cortena.ai/guides/get-started/matching-guidelines): The six Google Docs and Sheets that teach Cortena how to match booking accounts, VAT codes, creditors, and cost centers.
- [User management](https://help.cortena.ai/guides/get-started/user-management): Invite teammates, roles, and access across entities.