The following illustration shows how SAM application monitor templates and application monitors relate; it applies to all SAM templates, including AppInsight templates.
If you change a configuration setting or component monitor at the template level, all application monitors based on that template are affected. For example, if you adjust a threshold for a template's component monitor, that change is made to the same component monitor in all application monitors based on the template. This inheritance relationship helps you make bulk changes quickly. For example, rather than change one item in 100 application monitors based on a single template (requiring 100 changes), make the change once in the template and that change is inherited by all child application monitors.
However, note that if you go a level deeper and change a setting of a component monitor, that change only impacts the application monitor, not the original template. If you change thresholds at the component monitor level, only thresholds of the individual component monitor are affected. Thresholds on the parent template, or other application monitors based on the parent template, are not impacted.