# Configuration GA4
Once you have created and configured your GTM Server container and your DNS settings, you are ready to start sending your first data to GA4
{% hint style="danger" %}
Attention! Sirdata offers a comprehensive service for setting up and configuring your Google Analytics 4 (GA4) and Google Tag Manager (GTM) clients, as well as your GA4 tags and Facebook Conversions API (CAPI).
If you are not fully confident in server-side configuration and setup, please do not hesitate to [contact us](https://www.sirdata.com/en/Contact).
{% endhint %}
## 1) Creation and Configuration of "Clients" in Your Server Container
### a) Client "GA4"
When creating your server container, a GA4 client is already created by default :
Client "GA4"
You must first configure this GA4 client and add your GA4 Measurement ID.
### b) Client "GTM"
Add and configure the "GTM" client. You also need to add your client container ID :
Client "GTM"
## 2) Creation of the GA4 tag in your server container
### a) GA4 Tag
Add the "Google Analytics: GA4" tag
Tag "Google Analytics: GA4"
###
### **b) Trigger "ClientNameGA4"**
Add a trigger of type "Custom":
Trigger "ClientNameGA4"
In this trigger, add a new variable: "ClientName" of type "Client Name":
Variable "ClientName"
Then, add the condition that the variable "ClientName" equals "GA4" in your "ClientNameGA4" trigger :
Trigger "ClientNameGA4" with the variable "ClientName" equal to GA4
## 3) Configuration of the GA4 tag in your "client" container
Add the configuration parameter "server\_container\_url" to your Google GA4 tag, assigning it the value of your subdomain URL (host). For example:
