Mastering Google Tag Manager's Form Submission Trigger for Better Tracking
- Supantha Mandal

- Jul 12, 2025
- 4 min read
In today's fast-paced digital world, knowing how users engage with your website can make all the difference in your online strategy. One of the simplest yet most effective methods to capture this engagement is by tracking form submissions. With Google Tag Manager's form submission trigger, you can easily monitor when users fill out and submit forms on your site. This tool offers insights that help improve user experience and marketing efforts. Let’s explore how to set it up and utilize it effectively for your needs.
What is a Form Submission Trigger?
A form submission trigger in Google Tag Manager (GTM) is an event that activates when a user successfully submits a form on your site. This function is essential for tracking conversions, collecting leads, or any engagement that requires user input. By setting up this trigger, you can ensure that relevant tags activate, allowing for effective analysis of form submission data.
Why Tracking Form Submissions Matters
Tracking form submissions helps you understand user interactions and optimize their experience. Here are a few benefits you gain from successful tracking:
Conversion Rates: Knowing how many users submit forms compared to how many visit the page can highlight your conversion rate. For example, if 200 people visit your newsletter sign-up page and 50 complete the form, your conversion rate is 25%.
User Behavior Insights: Tracking submissions provides data about user behavior before and after submission, helping adjust your site for better engagement.
Identifying Improvement Areas: By analyzing which forms are frequently abandoned, you can make design changes to enhance user experience.
With these insights, you can enhance your website's design and your overall marketing strategies, leading to improved engagement rates.
Getting Started: Setting Up a Form Submission Trigger
To configure a form submission trigger using Google Tag Manager, follow these streamlined steps:
Click on Triggers and Then New
Log into your GTM account and navigate to the "Triggers" section from the left-hand menu. This is where you will create a new trigger specifically for form submissions.
Choose the Form Submission Trigger Type
Click on "Trigger Configuration," then select the "Form Submission" option. This trigger type is designed specifically for tracking form submissions effectively.
Utilize the “Wait for Tags” Option
This feature allows you to delay the form submission until all associated tags have fired or until a specified timeout occurs. Without this feature, you risk losing important tracking data if slow tags do not fire before the next page loads.
Setting Up “Check Validation”
The “Check Validation” option ensures the trigger fires only when the form is successfully submitted. If unselected, the trigger will activate for every submission attempt, including incomplete forms.
Specify Conditions for the Trigger
It’s vital to define when you expect the form submission. Under "This trigger fires on," select "Some Forms" and enter a trigger filter based on the form’s URL. This ensures you are gathering data that matters.
Understanding Built-In Variables
When the form submission trigger activates, certain built-in variables are populated. Here are key variables to familiarize yourself with:
Form Element: Indicates which form element was submitted.
Form Classes: Lists the values found in the form's class attribute.
Form ID: Displays the ID attribute of the form element.
Form Target: Shows the target attribute of the form element.
Form URL: Reflects the href attribute of the form, if applicable.
Form Text: Contains the visible text inside the form.
These variables enhance your ability to analyze submission details, thus maximizing the data scope for better performance.
Practical Example of Implementing a Form Submission Trigger
Let’s look at a practical example of how a form submission trigger works. Imagine a website featuring a newsletter sign-up form, and your goal is to track how many users submit their email addresses through this form.
Create a new trigger in your GTM account and select the Form Submission type.
Enable the "Wait for Tags" option to ensure that any tags related to the newsletter fire.
Turn on the "Check Validation" option to fire the trigger only upon a successful email submission.
Set conditions to track submissions only on the `/newsletter-signup` URL.
Link this trigger to a tag that reports events to Google Analytics for further insights.
Following these steps will provide crucial data on how many visitors subscribe to your newsletter, helping you optimize future marketing efforts.
Troubleshooting Common Issues
As you implement form submission triggers, you might face some challenges. Here are a few common problems and how to troubleshoot them effectively:
Tags Not Firing: Verify that you have correctly set trigger conditions and that the "Wait for Tags" option is enabled when needed.
Duplicated Events in Google Analytics: Check if your trigger is firing too broadly, capturing multiple unintentional submissions.
Missing Variables: If expected built-in variables are missing, ensure GTM correctly recognizes the form. Testing in different browsers may help rule out specific issues.
Elevating Your Tracking Strategy
Google Tag Manager's form submission trigger is a valuable feature that can significantly enhance your tracking capabilities. By configuring this tool accurately, you gain insights that can shape your website design, marketing strategies, and overall user engagement.
Whether your goal is to follow up on leads, analyze user behavior, or gather more data on form interactions, mastering the form submission trigger is essential for every website owner. So take the time to implement it correctly, and you'll see your data collection efforts thrive!

As you start tracking your form submissions, explore related resources for a fuller understanding of trigger types and built-in variables. Being well-informed will empower you to take full advantage of the robust functionalities Google Tag Manager has to offer. Happy tracking!




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