Use this template to configure the container monitoring system on your Google Tag Manager server The custom Server Container Monitor tag template is the Server Tag Container template for the Google Tag Manager Community Template Gallery. You will need to configure all tags to pass the correct metadata. Release Notes Change Date: March 26, 2021 Original Release. This information can be used to proactively troubleshoot tags. Follow the links above in the blog post to find out how. 2021 Simo Ahava. The tag itself is easy to customize.