Solution : https://service.sap.com/sap/support/notes/570522 (SAP Service marketplace login required)
Key words :
transaction miroand relevant fi transactions, support future tax audits, vendor determined tax amount, tax amount entered manually, direct pay permit, means thatthe tax, external tax interface, posting tax adjustments, tax authority directly, user exit exit_saplfytx_user_001
Related Notes :
589301 | Determine taxes line-by-line with manual tax entry |
338085 | MIRO/FB60: Direct posting to tax account |