Solution : https://service.sap.com/sap/support/notes/178573 (SAP Service marketplace login required)
Key words : 
8 days check  exits-param = c_exit_param_none, accounting document header        bseg, accounting document item        j_1gcontrol, journal type list        j_1gjournal3, 15 days check  append exits, associationform get_exit_titles_ tables etab, journal check  append exits, internal tables exits, c_exit_param_none           <--- insert          title, <--- insert  append exits
Related Notes : 
       
| 191827 | Change validation of posting date for MM and FI | 
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| 95516 | Problems with matrix validations/substitutions | 
| 77268 | Conversion of sub-fields not correct | 
| 76872 | Substitutions in FI at callup point 3 | 
| 68303 | Proj.int.calc.: add. acc.assignm. for offset. entry | 
| 48121 | User Exits in Validations/Substitutions | 
| 27537 | FI-SL:termination due to missing exit programs |