> ## Documentation Index
> Fetch the complete documentation index at: https://docs.penzum.app/llms.txt
> Use this file to discover all available pages before exploring further.

# Connect Billingo

> Automatic invoice sync with Billingo

## Connection steps

1. Open **Settings → Connections**
2. Click the **Billingo** row
3. Paste the **API key** from your Billingo account
4. After saving, the first sync starts automatically

<Info>
  You'll find your Billingo API key under **Settings → API** in Billingo.
</Info>

## How does the sync work?

Once connected, Penzum periodically fetches your paid invoices. The first sync starts from the beginning of the current calendar year.

## Disconnecting

You can disconnect under **Settings → Connections**. Already-synced data is retained.