Why is the charge account not displayed on the Cart Requisition Summary page?

In the Oracle Self Service Procurement application, the charge account information is displayed according to these parameters:

• If a requisition is costed to a project, the application doesn’t display charge account information in the Requisition Summary section, instead only project and task details are displayed.
• If a requisition isn’t costed to a project, the charge account will be displayed in the Requisition Summary section.