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  • How can I track form field values dynamically in GTM?

    Posted by Kendall on 10 August 2022 at 2:05 am

    Hey, I’m trying to track what’s in a form after it’s been submitted using gtm. I started out with stuff like this “gtm.element.3.value”, which has a static ‘3’ index value. I’d like it to be dynamic though, so I don’t need to create a ton of variables. Do I really need to make a bunch of dataLayer variables for each index value like gtm.element.0.value, gtm.element.1.value, and so on? I’m just trying to streamline the process and avoid manually entering index values. Can that be done in GTM?

    Olivia replied 11 months, 2 weeks ago 3 Members · 2 Replies
  • 2 Replies
  • Amit

    14 November 2022 at 5:53 am

    You’re right, manually creating dataLayer variables for each index isn’t the most efficient method. You might want to consider going for a more dynamic approach. With GTM, you can create a single custom JavaScript variable to parse your form elements as needed, adding the flexibility you’re looking for. Just be mindful, though. If the form fields change – like if some are added or removed – your index values would also shift, causing your data to change unexpectedly. So while this method is more streamlined, it isn’t without its potential quirks. Still, it ought to make things a bit easier for you!

  • Olivia

    28 February 2023 at 5:53 am

    Yes, it’s possible to avoid creating a large number of dataLayer variables with different index values in Google Tag Manager (GTM). An alternative approach is to use JavaScript within GTM to iterate over the form elements and push the values to the dataLayer in a more structured and understandable way. You can create custom JavaScript variables that can access form values dynamically based on their context of use. This way, there’s no need to create a new variable for each form element — you can simply reuse the same variables as needed. Remember: JavaScript can get quite complex, so you might want to consider seeking help from someone with JavaScript and GTM experience if needed.

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