Reset the Project CBS

You can reset the project CBS if your project cost code needs change if the following conditions are met:

CBS codes are not assigned to scope items, scope assignments, funds, or risks.
CBS codes are not inherited by another CBS.

To reset the project CBS:

In the object selector, select a project.
In the sidebar, hover over  Cost and Funds, and select Cost Sheet.
On the Cost Sheet page, select the Actions menu, and then select Reset CBS.

Next: View Rolled Up Project CBS Values