When building modern interfaces, providing clear and timely feedback is essential for user experience. MUI offers several components to help you communicate status, errors, and progress to users. You will often use the Alert, Snackbar, and progress indicators like LinearProgress and CircularProgress to accomplish this.

Begin with the Alert component, which is ideal for displaying prominent messages such as errors or confirmations. You can easily show different severities, like error for something that went wrong or success for a completed action. Here is how you might use Alert for both error and success messages:

While Alert is useful for visible, inline messages, sometimes you want to display a notification that appears temporarily and then disappears. This is where the Snackbar component shines. Snackbar is typically used for transient feedback at the bottom of the screen, such as notifying users that an action was successful without interrupting their workflow. Here is an example of how you might use a Snackbar for a temporary notification:

In addition to alerts and notifications, you often need to indicate that something is loading or in progress. MUI provides two primary progress indicators: LinearProgress and CircularProgress. Use LinearProgress for horizontal loading bars and CircularProgress for circular spinners. Both are useful for showing that data is being loaded or an action is being processed. Here is how you can use both components for loading states: