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

# Linking G2 (G2.com, Inc.) as a source

Canonical URL: https://posthog.com/docs/data-pipelines/sources/g2

> **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 G2 (G2.com, Inc.) connector syncs products, categories, vendors, 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 G2 access token to pull your product's reviews and G2's product catalog.

Create an account and generate an access token in the [G2 Developer Portal](https://my.g2.com/developers). Grant read access to the tables you want to sync:

-   Products and vendors need no scope
-   Reviews need the `products.reviews.read` scope

Access tokens expire one year after creation and must be regenerated.

You'll be asked for:

-   **Access token**
-   **G2 product ID or slug**: used to sync reviews for your product. Find it in your G2 vendor dashboard, or in your product's G2 URL.

## 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.

All G2 (G2.com, Inc.) tables are full refresh. Each sync replaces the contents of the table.

## Configuration

| Option | Description |
| --- | --- |
| `Access token` **Type:** password **Required:** True |  |
| `G2 product ID or slug` **Type:** text **Required:** True | Used to sync reviews for your product. Find it in your G2 vendor dashboard, or in your product's G2 URL. |

## Supported tables

| Table | Description | Sync method | Incremental field | Primary key |
| --- | --- | --- | --- | --- |
| `products` | G2's public catalog of software products, including vendor, category, rating, and pricing metadata. | Full refresh | — | — |
| `categories` | G2's product category taxonomy. | Full refresh | — | — |
| `vendors` | Vendors (software companies) listed on G2. | Full refresh | — | — |
| `reviews` | Published reviews for your G2 product. | Full refresh | — | — |

## Troubleshooting

-   If the connection fails with an authorization error, the access token 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](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.