> For the complete documentation index, see [llms.txt](https://docs.getgymini.com/gymini/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.getgymini.com/gymini/features/features-overview/forms-surveys-chat/surveys-and-forms/filling-form-fields-using-url-parameters.md).

# Filling Form Fields Using URL Parameters

**Introduction**

In Gymini, you have the flexibility to pre-fill form fields using URL parameters. This feature can be a great time-saver and enhance the user experience by pre-populating fields with known information. This guide will walk you through the process of setting up and using URL parameters to fill form fields.

**Prerequisites**

Before you begin, ensure that you have identified the query keys associated with each field you intend to pre-fill. Note that not all fields, such as dropdowns and date fields, can be pre-filled using URL parameters.

**Step-by-Step Guide**

**Step 1: Identify the Query Keys**

* **Locate Query Keys**: In your form builder, identify the query keys associated with each field you wish to pre-fill.
* **Note Down the Keys**: Note down these keys as you will be using them to construct the URL parameters.

**Step 2: Construct the URL with Parameters**

* **Base URL**: Start with the base URL of your form.
* **Add Parameters**: Append the URL with parameters using the following structure: `?queryKey1=value1&queryKey2=value2&...`
  * For example, to fill the first name, last name, and state fields, your URL might look like this:

    ```perl
    perlCopy code?firstName=Fred&lastName=Arm&state=NY
    ```
* **Test the URL**: After constructing the URL, test it by pasting it into a browser to ensure the fields are being pre-filled correctly.

**Step 3: Test the Form Submission**

* **Submit the Form**: After verifying that the fields are pre-filled correctly, submit the form with some test entries.
* **Verify the Submission**: Check the contact details in Gymini to ensure the information has been transmitted correctly.

**Conclusion**

Filling form fields using URL parameters in Gymini is a straightforward process that involves identifying the query keys for the fields and constructing a URL with the appropriate parameters. This feature enhances the user experience by pre-populating fields with known information, saving time for your leads and increasing the likelihood of form submissions.