Solution : https://service.sap.com/sap/support/notes/81966 (SAP Service marketplace login required)
Key words : 
message id tj2gd-mscl type tj2gd-mstp number  tj2gd-msno, source code correction --------------------$ include  j_1gmmv0          module validate_budat input                                 module validate_budat input, pai-module zum modulpool  sapmm07m                                   include  mm07mi00, source code correction --------------------$ source code, greek legal requirements------------------------material transactions, field rm07m - lfsnr module xblnrwe_setzen, zdatediff  = sy-datum  -  mkpf - budat, source code correction --------------------$process, prerequisites greek legal requirement, modify include program j_1gmmv0
Related Notes : 
       
| 191827 | Change validation of posting date for MM and FI | 
| 143246 | SD postings: 10 days validation |