Solution : https://service.sap.com/sap/support/notes/369706 (SAP Service marketplace login required)
Key words :
additional key words mr1m, include table 'ci_tax_input_user', logistics invoice verification, user exit 'exit_saplfytx_user_001', invoice verification, table 'bseg', structure 'tax_user_pricing', 'calculate_tax_document' function, structure 'drseg', solution implement
Related Notes :
| 302998 | Collecting fields for user-exit |