GA4 Setup for Data Manager

This guide covers the Google Analytics 4 (GA4) side of preparing a client for the Data Manager API integration. It walks through creating a service account, enabling the API, granting property access, and locating the Measurement ID, and lists the values MetaRouter needs to complete the configuration.

Setup Steps

1. Create a Service Account

Follow Google's guide: Set up access — Service Account

Set the scope to include the Data Manager scope:

scopes="https://www.googleapis.com/auth/datamanager"

Once the Service Account is created, go to Keys → Add Key → JSON and download the key file.

2. Enable the Data Manager API

• Open the Google Cloud Console left-side menu → APIs & Services → Library
• Search for Data Manager API
• Click it, then click Enable API

3. Grant the Service Account Access to the GA4 Property

• Sign in to Google Analytics as an administrator
• Admin → Property access management
• Click the blue + button → Add users
• Enter the Service Account's full email address
• Assign a role of Editor or Administrator on the property
• Click Add

4. Find the Measurement ID

You must be an Editor or above on the Analytics account at the property level to view the Measurement ID.

• In Admin, under Data collection and modification, click Data streams
• Select the Web tab, then click the web data stream
• Copy the Measurement ID (begins with G-) shown in the upper-right of the panel

Each data stream has its own Measurement ID, while all streams in the property share one Property ID.

What MetaRouter Needs