# Linking Copper as a source - Docs

**Alpha release**

This source is currently in **alpha**. The interface and available tables may change.

Sync your Copper CRM data – people, companies, leads, opportunities, projects, tasks, and reference data – into the PostHog data warehouse.

## Adding a data source

1.  Go to the [sources tab](https://app.posthog.com/data-management/sources) of the data pipeline section in PostHog.
2.  Click **\+ New source** and then click **Link** next to Copper.
3.  Next, gather your Copper credentials:
    -   **API key** – generate one in Copper under **Settings → Integrations → API Keys**.
    -   **User email** – the email address of the user the API key belongs to.
4.  Back in PostHog, enter the credentials and click **Next**.
5.  Select the tables you want to sync, set the sync method and frequency, then click **Import**.

Once the syncs are complete, you can start using Copper data in PostHog.

## Available tables

| Table | Description | Sync method |
| --- | --- | --- |
| people | Individual contacts in your Copper account | Incremental |
| companies | Company records | Incremental |
| leads | Sales leads | Incremental |
| opportunities | Sales opportunities (deals) | Incremental |
| projects | Projects | Incremental |
| tasks | Tasks | Incremental |
| users | Users in your Copper account | Full refresh |
| pipelines | Pipeline definitions | Full refresh |
| customer_sources | Customer source reference data | Full refresh |
| loss_reasons | Loss reason reference data | Full refresh |
| contact_types | Contact type reference data | Full refresh |

**Incremental** tables sync only new or updated records on each run. **Full refresh** tables reload all data on each sync.

## Sync limitations

Incremental tables sync on the `date_modified` or `date_created` field (both Unix epoch seconds). The `users` table and the reference tables (`pipelines`, `customer_sources`, `loss_reasons`, `contact_types`) have no reliable server-side timestamp filter and are full refresh only.

## Configuration

| Option | Type | Required |
| --- | --- | --- |
| API key | password | Yes |
| User email | email | Yes |

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