Solution : https://service.sap.com/sap/support/notes/1470292 (SAP Service marketplace login required)
Key words : 
taxcoun_reg    descriptions en    short          10        country    medium          15        country/region    long            20        country/tax region    heading        34        saft_pt, code    long          20        official tax code    heading        29        official tax code description3, reason    long            20        tax exemption reason    heading        20        tax exemption reasondata element, exemptreason    description en    short          10        reason    medium          16        tax exemp, off_taxcode     description en    short          9         tax, country/tax regiondata element, package id-fi-pt definition, create domain transtypcall transaction se11, data elements lenghtcall transaction se11, code    medium         15
Related Notes : 
       
| 1459306 | SAFT-PT: Collective note for SAFT-PT notes | 
| 1420231 | SAFT_PT: Customizations for LC2010 |