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

# Google Analytics 4 Connection: Sessions and Conversions

> Sync GA4 sessions, users, events, bounce rate, and conversions by source, medium, channel, device, and geography for cross-channel reporting.

The Google Analytics 4 (GA4) connection brings your website traffic and user behavior data into Marcenta. Once connected, you can analyze sessions, users, conversions, and engagement metrics alongside your ad spend—so you can see what's driving visits and what those visits actually do on your site.

## What data is synced

### Metrics

| Metric                 | Description                                       |
| ---------------------- | ------------------------------------------------- |
| `sessions`             | Number of sessions on your website                |
| `users`                | Number of unique users                            |
| `bounce_rate`          | Percentage of sessions with no further engagement |
| `avg_session_duration` | Average session length in seconds                 |
| `conversions`          | Number of conversion events recorded in GA4       |
| `events`               | Total event count                                 |

### Dimensions

| Dimension       | Description                                                  |
| --------------- | ------------------------------------------------------------ |
| `source`        | Traffic source (e.g., google, facebook)                      |
| `medium`        | Traffic medium (e.g., cpc, organic)                          |
| `channel_group` | Default channel grouping (e.g., Paid Search, Organic Social) |
| `landing_page`  | The first page a session landed on                           |
| `device`        | Device category (desktop, mobile, tablet)                    |
| `country`       | User country                                                 |
| `city`          | User city                                                    |
| `region`        | User region or state                                         |

## Before you connect

Make sure you have:

* An active GA4 property (not Universal Analytics)
* **Editor** or **Administrator** access to that property in your Google account

<Info>GA4 replaced Universal Analytics in July 2023. If your property still uses Universal Analytics, it will not be compatible with this connection.</Info>

## How to connect

<Steps>
  <Step title="Go to Connections">
    Select **Connections** from the left sidebar.
  </Step>

  <Step title="Select Google Analytics 4">
    Click the **Google Analytics 4** card in the Available connections grid.
  </Step>

  <Step title="Authorize with Google">
    Click **Connect Google Analytics 4** on the setup page. You'll be redirected to Google to sign in and grant Marcenta read access to your Analytics data.
  </Step>

  <Step title="Select a property">
    After authorizing, you'll be prompted to choose a GA4 property. Select the property you want to sync, then confirm.
  </Step>
</Steps>

<Tip>If you manage multiple GA4 accounts, you'll first choose an account and then select a property within it.</Tip>

## Permissions requested

Marcenta requests read-only access to your GA4 property data. No changes can be made to your Google Analytics configuration through Marcenta.

## Sync frequency and manual sync

GA4 data syncs automatically. To trigger a sync immediately:

1. Go to **Connections**.
2. Find the Google Analytics 4 connection in the Active Connections grid.
3. Click **Sync Now**.

## Troubleshooting

<AccordionGroup>
  <Accordion title="Connection shows an error status">
    Your Google session may have expired. Open the connection's **Manage** view and reconnect. After reconnecting, click **Sync Now** to resume data collection.
  </Accordion>

  <Accordion title="No properties appear during setup">
    The Google account you authorized may not have Editor or Administrator access to any GA4 properties. Sign in with an account that has the correct permissions, or ask your GA4 administrator to grant you access.
  </Accordion>

  <Accordion title="Data doesn't match what I see in GA4">
    Check that you selected the correct GA4 property during setup. Also confirm the date range you're reporting on in Marcenta matches what you're viewing in the GA4 interface. If the discrepancy persists, open the connection's **Manage** view and trigger a manual sync.
  </Accordion>

  <Accordion title="Sync Now shows 'Session expired'">
    Your Google session has expired. Reconnect from the **Manage** view and then retry **Sync Now**.
  </Accordion>
</AccordionGroup>

## Page trust signals

* Last reviewed: May 20, 2026
* Maintainer: Marcenta Team