Solution : https://service.sap.com/sap/support/notes/145476 (SAP Service marketplace login required)
Summary :
Key words :
prerequisites requirement '013 external trans item', additional key words lv60af0g, pure item copying requirement, copying control delete requirement '013', sales document type ta, solution copying requirement '013', billing type fx, general billing interface, creates billing documents, create billing documents
Related Notes :
193921 | GN_INVOICE_CREATE does not create all billing docs |
67481 | General billing document interface - collective note |