The final step in SAP Fieldglass Services workflow is invoicing.
From an application perspective, an invoice is essentially a file that includes all the data required for the buyer company to pay a supplier and the supplier to pay their worker. Within services, the invoice file will contain data related to SOW worker payments such as time and expense sheets, as well as SOW line Items, such as schedules, events, and fees.
Creating SOW Invoices
In SAP Fieldglass, SOW invoices can be created manually—either the buyer determines the invoice billing schedule (by currency), or the supplier is responsible for creating invoices by running an invoice file each time a payment milestone is achieved.
However, the recommended practice is to configure auto invoicing. Auto invoice essentially means there is no manual intervention needed from the supplier. When auto invoice is enabled, the system will generate an invoice automatically from a completed SOW characteristic or approved time or expense sheet.

Once the work items are in approved status, the application creates an invoice line item for each individual time sheet, expense sheet, or characteristic that was approved. Based on the invoicing schedule determined by the buyer, all new work items are pulled into one invoice file.
