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# Set variable
The **Set Variable** action allows assigning values to variables, enabling dynamic behavior and logic control within the project.
**Settings**
* **Variable** — Specify the variable whose value needs to be updated.
* **Value** — Specify the value to assign to the variable. This can be a static value or an expression.
Learn more about variables and expressions: [Variables & Expressions](/documentation/3d-configurator/variables-and-expressions.md)
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