# Input field: Variable name

> Name the variable an input field writes to so you can reference it in expressions.

Source: https://bluepic.io/help/input-fields/input-field-variable-name  
Language: en  
Category: input-fields  
Last updated: 2026-06-15

Every input field stores its value in a **variable**, and the variable name is how you refer to that value in [expressions](https://bluepic.io/help/expressions-and-logic/variables). A field whose variable name is `headline`, for example, lets you write expressions that read `headline`.

The name sits at the top of the field's editor. Edit it and confirm with the checkmark. Two rules apply:

- It must be **unique** within the template.
- It must be a valid name: letters, numbers, and underscores, with no spaces.

![](https://imagedelivery.net/mudX-CmAqIANL8bxoNCToA/838ab712-e6f8-4350-58c0-7471409a2200/max)

Most of the time the default name is fine. Rename it when you want something memorable to use in expressions, or to keep your variables tidy.