You can create an invoice in Accounts Payable Operations.

Once you have generated a receipt, follow these steps to create an invoice.

1. Login to APO. Impersonate with APSUser. Go to Procurement Workspace Select the PO whose invoice must be created.
2. Since a receipt has been created for this PO, in the Details tab you can see the status to be Delieved and one data entry in the Receipt task as well.
3. 
4. Now, browse the Invoice list and click on New button to create an Invoice.
5. 
6. In the Create New Invoice window that opens enter Supplier invoice number. Select a Supplier, Purchase order and Invoice date. Enter value for Subtotal and Default tax code.
7. Click on Save.
8. 
9. Go to the Invoice Line tab, click on New and in the Create New Invoice Line window that opens input the important fields: Line description, Purchase order line number, Invoice line quantity, Line unit price and Subtotal.
10. Click on Save.
11. 
12. Click on ViewInvoiceProcessing case to view Invoice details.
13. Next, click on Submit Invoice

    

14. If there are no exceptions encountered, the system creates an invoice with its status set to “Approved”.
15. Now, the invoice execution gets triggered SAP.
16. Once successful the Invoice Status changes to Pending payment and the ERP number is generated.

    

17. Log in to SAP and validate the generated invoice.