Forum Discussion
Entra Connect Health for ADFS Agent Quantity
you need to install the agent on every server in the farm that is running the ADFS service. This is because the agent collects data from the ADFS event logs and performance counters on each server and sends it to the Entra Connect Health service. If you only install the agent on one server, you will not get a complete picture of your ADFS health and performance.
You also need to install the agent on each Web Application Proxy server that is connected to your ADFS farm. The agent will collect data from the Web Application Proxy event logs and performance counters and send it to the Entra Connect Health service as well.
As for the licensing, you need to have a Microsoft Entra ID P1 or P2 subscription for each user account that is used to install and configure the agents. You also need to have a Microsoft Entra ID P1 or P2 license for each user account that accesses the Entra Connect Health portal or API. You do not need to have a license for each agent installation. For more information,
Below docs says need to install in each of on-prem identify server.