Any deleted project can be restored from the archive section.
To delete a project, first, click on the project you want to delete. This will open the project.
Next, click on the three dots next to the project reference.
Click "Delete project".
Confirm that you want to delete the project by clicking "Delete".
Deleting this project will also delete/archive any proposals, invoices, events, tasks, forms and payments you have created under this project.
This action will not be reflected in any third-party integrations, such as accounting software.
You can find out how to recover an archived project here.