The billing in third-party order processing (TPOP) uses the standard FI functions to:
Invoice Creation and Generation (ERS)
Update of Accounts Receivable
Update of Billed Quantity
Update of Accounts Payable
Offsetting Accounts
For more information about standard FI functions, see the SAP Library of SAP ECC under Financials Financial Accounting (FI).
Financials
Financial Accounting (FI).