This feature should be used only on pages that users who have accepted your legal documents can view, for example when they are signed in to their account area. The user gave consent to your documents during signup, but you may have made changes since the user signed up. The prompt for renewed consent only shows if there are updates, changes or revisions to the documents that a user has previously accepted.
This feature is very easy to activate:
If there are no pending documents for the user to consent to, this feature will simply have no effect.