Sandbox project models are project models that you can use for testing and trying out different things. For example, actions that might have a significant impact on your model, such as running an Excel import or an import from another model.
You can also use it as a testing ground for familiarizing yourself with BriefBuilder’s functionalities, or as a way to experiment with how to set up the structure of your model. It is a way of playing around with your data and the application.
You can create a new project model as a sandbox by ticking the box that pops up when creating a new model.
![](https://support.briefbuilder.com/wp-content/uploads/2021/04/create-model.png)
You can also clone existing project models as sandbox models. You will get to keep all the data from the existing model, but now with limited functionality.
![](https://support.briefbuilder.com/wp-content/uploads/2021/04/clone-model.png)
The number of sandbox projects that you can create depends on your BriefBuilder subscription. The number of sandboxes is equal to the number of active projects that you have a subscription for.
Contact your own BriefBuilder administrator for more information on your subscription or if you wish to scale up.