Convert MID-based ACC to MID-less

  • Release version: Australia
  • Updated June 11, 2026
  • 1 minute to read

    • Convert MID-based Agent Client Collector (ACC) to MID-less ACC by adjusting the configuration in acc.yml, decoupling from a specific MID to enhance flexibility and adaptability.

    Before you begin

    Verify that the ACC registration key was set up and the ACC was installed. For more information, see the following:

    Role required: agent_admin and agent_client_collector_admin

    For more information, see Agent Client Collector user roles.

    Procedure

    1. Stop ACC based on your operating system:
      • For Windows, access Services as administrator and stop the Agent Client Collector Service.
      • For macOS, execute the command: sudo launchctl unload -w /Library/LaunchDaemons/com.sn.acc.plist;.
    2. Open the acc.yml file.
    3. Edit the instance URL.
    4. Edit the backend-url parameter to point to <ITOM Cloud Services Gateway>.
      Use one of the following gateways based on the instance location:
      • AMER: itomcnc-prod-gateway-amer.sncapps.service-now.com:443
      • EMEA: itomcnc-prod-gateway-emea.sncapps.service-now.com:443
      • APAC: itomcnc-prod-gateway-apac.sncapps.service-now.com:443

      For more information on how the Agent uses the ITOM Cloud Services Gateway, see DEX Architecture.

    5. Configure the following parameters:
      • connect-without-mid: true
      • instance-url: <full_instance_url>

        For example: https://dex.servicenow.com.

      • insecure-skip-tls-verify: false
      • registration-key: <registration key value>

        For more information, see Create an ACC registration key.

    6. Comment out the API key parameter:
      api-key: "encrypted....”
    7. Save the file.
    8. Delete files based on your operating system:
      • On Windows, navigate to /agent-client-collector/config/cert/cnc and remove the following files: cnc_chain.crt and priv_key.pem.go.
      • On macOS, access /Library/Application Support/servicenow/agent-client-collector/cert/cnc and delete the files: cnc_chain.crt and priv_key.pem.
    9. Delete assets.db, queue.db, and all subdirectories in the cache folder based on your operating system:
      • On Windows: /agent-client-collector/cache.
      • On macOS:
        • For Agent 3.4.1 or above: /Library/Application Support/servicenow/agent-client-collector/cache.
        • For Agent 3.4.0 or below: /Library/Caches/servicenow/agent-client-collector.
      Important:
      Keep agent_now_id in the cache folder.
    10. Initiate the ACC service based on your operating system.
      • On Windows, open Services as administrator, then start the Agent Client Collector Service.
      • On macOS, use the command: sudo launchctl load -w /Library/LaunchDaemons/com.sn.acc.plist.