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Types of Variables

There are two types of variables you can add to your survey:
  1. Text: You can add text variables to your survey to capture text data.
  2. Number: You can add number variables to your survey to capture number data.

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How to Add Variables

  1. Open the survey in the editor, stay on the Questions tab and scroll to the bottom. You will find a Variables section.
  2. Give the variable a name, choose its type — text or number — and set a starting value. Add as many as you need.
Each variable also gets an ID, listed under Variable IDs, which is what you use to recall it. Variables in the survey editor

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Use cases

  • Quiz: You can use variables to create a quiz. For example, you can add a variable score and update it every time a user answers a question. You can also use the variable for recall to show the final score to the user.
  • Personalisation: You can use variables to store user data and personalise the survey experience. For example, you can add a variable full_name and update it every time a user fills in their first name and last name. You can use the variable to personalise the survey experience by addressing the user with their full name.

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How is it different from Hidden Fields?

Variables are different from hidden fields in the following ways:
  1. Setting: Hidden fields can be set through query parameters or formbricks.setup, but variables can only be set either during creation or dynamically by using logic actions.
  2. Updating: Hidden fields cannot be set again, but the value of variables can be updated while the user fills the survey.
  3. Type: Hidden fields can only store text data, but variables can store both text and number data.

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How to use Variables

  1. Once you have added the variables to your survey, you’ll be able to access them in the logic editor. You can use the variables to create logic actions and conditions.
Variables usage
  1. You can create logic based on the variables and questions in your survey and can update the variables based on the user’s response.
Logic with variables

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Recalling Variables in the Survey

You can recall show the variable value to the respondent by using the Recall Data function.
To know more about how to use logic in Formbricks, check out the Conditional Logic.