Customize page code
Use field descriptions in Dynamic Tag Management to customize page code when deploying Analytics.
Add plugins to ensure that the code runs at the same time as the Analytics tool. For more information about the Analytics plugins, see Implementation Plug-ins .
*`Property`* > **[
Edit Tool]** > Customize Page Code
Before UI settings : Interface settings take precedence over the custom code (for example, if you want to override an eVar if a setting in the interface was enabled).
After UI settings : Custom code takes precedence over interface settings.