How to display pop-up only once per user on shopify?

@mac 

To display a pop-up only once per user on Shopify, you can use a combination of cookies and Shopify's built-in tools. Here is a step-by-step guide to achieve this:

1. Create the pop-up message that you want to display to users on your Shopify store. You can use a pop-up app from the Shopify App Store or create a custom pop-up using HTML and CSS.
2. Use Shopify's built-in scripts editor to create a script that sets a cookie when a user closes the pop-up. This cookie will be used to track whether the pop-up has been displayed to the user before.
3. Add the following script to your Shopify theme's footer or header section:

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<script>
document.addEventListener('DOMContentLoaded', function() {
  if (!document.cookie.includes('popupDisplayed')) {
    // Display the pop-up message using your preferred method (e.g. JavaScript modal)
    // Set a cookie to track that the pop-up has been displayed
    document.cookie = 'popupDisplayed=true; expires=Thu, 31 Dec 2099 23:59:59 UTC; path=/';
  }
});
</script>

1. Customize the script to fit your pop-up message and styling preferences. You can modify the cookie expiration date to control how long the pop-up will be hidden for the user.
2. Test the pop-up on your Shopify store by visiting it in a private browser window or clearing your cookies to simulate a new user experience.

By following these steps, you can display a pop-up message to users on your Shopify store only once per user. This can help prevent annoying users with repetitive pop-ups and improve the user experience on your site.