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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.
