The built in monitoring tool will allow you to track changes in the indexability status, H1, Meta Title and Meta Description. This can be useful to pick up on changes that you may otherwise not have been aware of (for example when there is a bug in an SEO plugin, or if a customer were to update their own page titles etc.)
Any changes will be flagged in the change log at the bottom of the tile, and a notification of this change will also be sent to the assigned manager of the campaign. This feature is currently under development and will see significant changes.