Please use the Google Tag Manager (GTM) dashboard to configure any tracking code. All our websites have a deep integration with GTM so that you can easily go ahead and add tracker codes to any page or event as you like.

Once the tracking codes are configured, you can use the Chrome plugin - Tag assistant - to verify the same.

Please follow the link below to view a demo on how to go about configuring things in GTM:
https://support.google.com/tagmanager/answer/6106716?hl=en

Should there be any concern, we request you to reach out to the Google Tag Manager support team.