> AI agents: this is one page from PostHog's docs. Full index of Markdown docs for LLMs: https://posthog.com/llms.txt

# Linking Heroku as a source

Canonical URL: https://posthog.com/docs/data-pipelines/sources/heroku

> **Cloud region:** This page uses US Cloud hosts. For an EU Cloud project, use `https://eu.posthog.com` instead of `https://us.posthog.com` or `https://app.posthog.com` (app host for links).

## On this page

- [Prerequisites](#prerequisites)
- [Adding a data source](#adding-a-data-source)
- [Sync modes](#sync-modes)
- [Configuration](#configuration)
- [Supported tables](#supported-tables)
- [Troubleshooting](#troubleshooting)

![](https://res.cloudinary.com/dmukukwp6/image/upload/texture_tan_9608fcca70)

![](https://res.cloudinary.com/dmukukwp6/image/upload/texture_tan_dark_a92b0e022d)

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`

![PostHog Wizard hedgehog](https://res.cloudinary.com/dmukukwp6/image/upload/wizard_3f8bb7a240.png)

![](https://res.cloudinary.com/dmukukwp6/image/upload/wizard_3f8bb7a240.png)Let AI connect your sources for you

The Heroku connector syncs your apps, releases, builds, dynos, add-ons, and other Heroku platform data into PostHog, so you can analyze your deploy history, dyno formations, and add-on spend alongside your product data.

## Prerequisites

You need a Heroku account and an API key. Any Heroku user can generate one, no special account tier is required.

## 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.

When linking Heroku, you'll need:

-   **API key** – find it in your [Heroku account settings](https://dashboard.heroku.com/account) under **API Key**, or create a long-lived token with the Heroku CLI: `heroku authorizations:create`.

## 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](https://posthog.com/docs/data-pipelines/sources.md#sync-methods) for a full explanation of how each mode works and how to choose between them.

Heroku's API doesn't support filtering records by when they changed, so every table syncs as a full refresh.

## Configuration

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

## Supported tables

| Table | Description | Sync method | Incremental field | Primary key |
| --- | --- | --- | --- | --- |
| `apps` | An app represents the program that you would like to deploy and run on Heroku. | Full refresh | — | — |
| `addons` | Add-ons represent add-ons that have been provisioned and attached to one or more apps. | Full refresh | — | — |
| `addon_attachments` | An add-on attachment represents a connection between an app and an add-on that it has been given access to. | Full refresh | — | — |
| `builds` | A build represents the process of transforming a code tarball into build artifacts. | Full refresh | — | — |
| `collaborators` | A collaborator represents an account that has been given access to an app on Heroku. | Full refresh | — | — |
| `domains` | Domains define what web routes should be routed to an app on Heroku. | Full refresh | — | — |
| `dynos` | A point-in-time snapshot of the processes currently running on each app | Full refresh | — | — |
| `formation` | The formation of processes that should be maintained for an app — the process types, dyno sizes, and quantities the app is scaled to. | Full refresh | — | — |
| `invoices` | Invoices for your personal Heroku account; team invoices are not included | Full refresh | — | — |
| `pipelines` | A pipeline allows grouping of apps into different stages. | Full refresh | — | — |
| `pipeline_couplings` | Information about an app's coupling to a pipeline. | Full refresh | — | — |
| `releases` | A release represents a combination of code, config vars and add-ons for an app on Heroku. | Full refresh | — | — |
| `teams` | Only returns data for accounts that belong to Heroku Teams or Enterprise | Full refresh | — | — |
| `team_monthly_usage` | Monthly usage for Heroku Enterprise teams, covering the last 12 months | Full refresh | — | — |

A few tables only apply to certain accounts:

-   **invoices** covers your personal Heroku account. Team invoices aren't included.
-   **teams** only returns data for accounts that belong to Heroku Teams or Enterprise.
-   **dynos** is a point-in-time snapshot of the processes running when the sync happened.

## Troubleshooting

-   If your API key is invalid or has been revoked, generate a new key in your Heroku account settings, then reconnect.
-   Heroku rate limits API usage to 4,500 requests per hour per account. Syncs back off and retry automatically, but if other tools share the same account's quota, a sync can take longer than usual.

If your sync is failing or data looks wrong, see the [Data warehouse troubleshooting guide](https://posthog.com/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.