How to Use Query Strings with Conditional LogicPRO

This tutorial explains how to use a query string parameter in WS Form and apply conditional logic based on its value.

This is useful when you want your form to behave differently depending on how a user arrived on the page. For example, showing specific sections, fields, messages, or use of actions based on a URL parameter.

Add a Hidden Field

To begin, add a Hidden field to your form.

1. Open your form in the layout editor
2. Click or drag a Hidden field onto the form

This field will store the value of your query string parameter.

Set the Default Value Using a Query Variable

In the Hidden field settings, enter the following:

#query_var("parameter")

Replace "parameter" with the name of your query string parameter.

Example

If your URL is:

https://mysite.com/my-form/?source=google

Then your Default Value should be:

#query_var("source")

This will store the value google in the Hidden field.

Create Your Conditional Logic

1. Click the Conditional Logic  icon at the top of the layout editor. The Conditional Logic sidebar will open.
2. Click the Add icon  icon to add a new condition.
3. You can now use the Hidden field in your logic rules. For example:
   IF [Hidden Field] [Equals] google THEN ...