> For the complete documentation index, see [llms.txt](https://docs.magecomp.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.magecomp.com/magento-2-google-analytics-4-with-gtm/configuration.md).
# Configuration
Once you have successfully installed the extension and created an account in Google Analytics and Google Tag Manager, go to **Stores -> Configuration** to configure the extension for use.
**Google Tag Manager**
* **Enable GTM -** Enable or disable extension from here.
* **GTM and GA4 Regular Code -** Paste the GTM \ code and GA4 script you received and the time of account creation respectively.
* **GTM No-Script Code -** Paste the GTM \ code.
**Container Import**
* **GTM: Account ID -** Enter the GTM Account ID received at the time of account creation from the URL.
* **GTM: Container ID -** Enter the GTM Account ID received at the time of account creation from the URL.
* **GA4: Measurement ID -** Enter the GA4 Measurement ID received at the time of account creation from the URL.
* **Download File for Google Analytics 4 -** Click this button to download the predefined JSON file that you need to upload to the Google Tag Manager dashboard.
**Attribute Mapping**
* **Product Identifier -** Select the product identifier as ID or SKU.
* **Brand -** Select the product attribute from the dropdown menu.
* **Custom Dimensions and Metrics -** Set the dimensions and attributes for configurable products.
* **Identifier Resolution -** Select the identifier as parent or child.