Solution : https://service.sap.com/sap/support/notes/996686 (SAP Service marketplace login required)
Key words :
file ipc\lib\properties\parameters, ipc administrator parameters file, external tax system, tte customizing resides, transaction tax engine, ipc administrator, engine parameters, ipc server, tax calculation, tte enabled
Related Notes :
949149 | Tax not working with unicode external tax system |