To enhance the on-site experience of your Magento store, you need to increase conversations with your visitors, provide guidance and can even stop them from carrying certain actions. For example, on creating an account successfully, a success message is displayed. By entering a wrong password at the time of login, an error message is generated. Even a warning message appears, when the user breaks the rule set by the store admin. In such a manner, the Magento 2 store can be made interactive enough by engaging more with the visitors. You can make use of the code to display error, success and warning message in Magento 2.