Add Custom Admin Notices in WordPress

Display custom notices in the WordPress admin dashboard. Useful for warnings, reminders, or success messages for your team. For more on WordPress hooks.

add_action( 'admin_notices', function () {
    $screen = get_current_screen();

    if ( $screen->id !== 'edit-post' ) {
        return;
    }

    echo '<div class="notice notice-warning is-dismissible">';
    echo '<p>Remember to set a featured image before publishing.</p>';
    echo '</div>';
} );

Add to functions.php. Change the $screen->id check and message text to fit your needs. Use notice-success, notice-error, or notice-info for other styles.