How can you use Google Tag Manager to implement custom JavaScript tags? A Step by Step Guide

Using Google Tag Manager (GTM) to implement custom JavaScript tags allows you to deploy custom scripts on your website without directly editing your site’s code. Follow this step-by-step guide:

1. Log in to Google Tag Manager: Sign in to your GTM account at https://tagmanager.google.com/ and select the container associated with your website.
2. Create a new tag: Click “Tags” in the left-hand menu, then click the “New” button. Give your tag a descriptive name, such as “Custom JavaScript – Example.”
3. Choose a tag type: Click on “Tag Configuration” and select the “Custom HTML” tag type. This tag type allows you to add custom JavaScript code to your website.
4. Add your JavaScript code: In the “HTML” field, insert your custom JavaScript code. Be sure to wrap your code in <script> tags to ensure it’s interpreted as JavaScript:
   phpCopy code

   <script>
// Your custom JavaScript code goes here
</script>

5. Choose when to run your script (optional): If your script relies on specific conditions or dependencies, you can use the “Support document.write” option or “Run in custom sandbox” option to control when and how your script runs.
6. Choose a trigger: Click on “Triggering” and select the appropriate trigger for your custom JavaScript tag. If you want your script to run on every page, choose the “All Pages” trigger. If you want your script to run only on specific pages or under specific conditions, create a new trigger or select an existing one that meets your requirements.
7. Save your tag: Click “Save” to finish creating your custom JavaScript tag.
8. Test your setup: Before publishing your changes, use the “Preview” mode in GTM to test your custom JavaScript tag on your website. Make sure the tag fires correctly and that your script runs as expected.
9. Publish your changes: If your custom JavaScript tag works correctly in Preview mode, click “Submit” in the top right corner of the GTM interface to publish your changes and make your custom JavaScript tag live on your website.

By following these steps, you can use Google Tag Manager to implement custom JavaScript tags on your website, allowing you to deploy custom scripts and improve your site’s functionality without directly editing your site’s code.