Solution : https://service.sap.com/sap/support/notes/1520758 (SAP Service marketplace login required)
Key words : 
prerequisites advance development solution, 2 mm rules enhancement, symptom 6 fi, fivinvpost_01t1_01_a reason, support package, lopurpir_02t1_01_a, lopurvap_10t1_01_a, ficlpep_03t1_01_a, fipostdo_1006t1_01_a, fipostacit_1005t2_a
Related Notes : 
       
| 1518119 | PC30SP08: LOPURPIR_02T1_01_N/LOPURVAP_10T1_01_N(Enhancement) | 
| 1493142 | PC3.0 Support Pack 8 - Master Note |