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# Linking Smartlead as a source

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Let AI connect your sources for you

Skip the manual setup — run this in your project and the wizard auto-detects your databases and APIs and connects them to PostHog.

`npx @posthog/wizard warehouse`

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**Alpha release**

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

The Smartlead connector syncs campaigns, campaign sequences, campaign leads, and more into the PostHog data warehouse, so you can analyze them alongside your product data.

## Prerequisites

Credentials that can read the data you want to sync. PostHog only reads data, so read access is enough.

## Adding a data source

1.  In PostHog, go to the [Sources tab](https://app.posthog.com/data-management/sources) of the data pipeline section.
2.  Click **\+ New source** and click **Link** next to this source.
3.  Enter your credentials (see [Configuration](#configuration) below) and click **Next**.
4.  Select the tables you want to sync, choose a sync method and frequency, then click **Import**.

Once the syncs are complete, you can start querying this data in PostHog.

Enter your Smartlead API key to pull your cold email campaigns, leads, statistics, email accounts, and clients.

Find or create your API key under **Settings → Smartlead API key** in your Smartlead account. The key has access to everything your account can see.

You'll be asked for:

-   **API key**

## Sync modes

Each table can be synced in one of several modes, depending on what the source supports:

-   **Webhook** (when available) – the source pushes changes to PostHog in real time. Fastest freshness, lowest ongoing cost, and the only mode that reliably captures updates and deletes.
-   **Incremental** – only new or updated rows are synced on each run, using a cursor field (such as an `updated_at` timestamp). Cheaper than a full refresh, but deletes aren't captured.
-   **Append only** – new rows are appended using a cursor field; existing rows are never updated. Ideal for immutable, append-only tables like event logs.
-   **Full refresh** – the whole table is reloaded on every sync. Use it when a table has no reliable cursor or when you need deletions reflected.

See [sync methods](/docs/cdp/sources.md#sync-methods) for a full explanation of how each mode works and how to choose between them.

All Smartlead tables are full refresh. Each sync replaces the contents of the table.

## Configuration

| Option | Type | Required |
| --- | --- | --- |
| `API key` | password | Yes |

## Supported tables

| Table | Description | Sync method | Incremental field | Primary key |
| --- | --- | --- | --- | --- |
| `campaigns` | A cold email outreach campaign with its status, sending schedule, tracking settings, and sending limits. | Full refresh | — | — |
| `campaign_sequences` | An email sequence step configured in a campaign, including subject, body, delay, and A/B test variants. | Full refresh | — | — |
| `campaign_leads` | A lead's membership in a campaign, with the lead's contact details and campaign-specific status. | Full refresh | — | — |
| `campaign_statistics` | Per-email send statistics for a campaign: one row per sent email with open, click, reply, and bounce outcomes. | Full refresh | — | — |
| `campaign_analytics` | Aggregate performance metrics for a campaign: totals and rates for sends, opens, clicks, replies, and bounces. | Full refresh | — | — |
| `email_accounts` | A sending email account connected to Smartlead, with SMTP/IMAP connection state, sending limits, and warmup status. Mailbox passwords are stripped before rows are stored. | Full refresh | — | — |
| `clients` | A whitelabel client sub-account under the main Smartlead account. | Full refresh | — | — |

## Troubleshooting

-   If the connection fails with an authorization error, the API key is wrong, expired, or has been revoked. Create a new one, then reconnect the source.
-   If a table syncs no rows, the credential may not have access to that data. Check its permissions, then reconnect the source.

If your sync is failing or data looks wrong, see the [Data warehouse troubleshooting guide](/docs/data-warehouse/troubleshooting.md). If that doesn't help, [contact support](https://us.posthog.com/#panel=support%3Asupport%3Adata_warehouse%3A%3Atrue) – we're happy to help.

### Still have questions?

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