The final step in any SAP Fieldglass contingent workflow is invoicing. From an application perspective, an invoice is essentially a file that includes all data required for the buyer company to pay a supplier and the supplier to pay their worker. These invoices can be associated to a submitted time sheet or an expense sheet, but will reflect compensation that is owed to the contingent worker. The specific data included in an invoice file will depend on the organization’s specific requirements, but the process flow and configuration options will follow a similar set up.