The nantu_environment query variable (e.g., nantu_environment=qa) allows you to load a second GTM container, known as the QA Container. This container is specifically designed to make it easier to preview and test changes when publishing updates to your main GTM container isn’t possible.

When you use the nantu_environment=qa query variable, the QA Container will remain active for one hour. You can manually deactivate it earlier by clicking the link in the banner displayed at the bottom of the page while the QA Container is enabled.