Solution : https://service.sap.com/sap/support/notes/90486 (SAP Service marketplace login required)
Key words : 
sap system presently calculates, create constant optaa, additional key words, prerequisites note 63842 solution, source code corrections, note manually, additional cuota, symptom attention, functionality implemented, lcp mechanism
Related Notes : 
       
| 137072 | CONSULT.: HRMS España - Notas de consultoría | 
| 63842 | TC´S: Preliminary delivery from 3.1I |