Solution : https://service.sap.com/sap/support/notes/655803 (SAP Service marketplace login required)
Key words : 
individual/collective indicator, process order, main product, material master, terms co01, sbdkz reason, solution implement, prerequisites notes 356588, program corrections, prerequisites
Related Notes : 
       
| 592497 | Configuration of the material variant not correct | 
| 572377 | Network: call EXIT_SAPLCOMK_007 for direct procurement | 
| 540599 | No material status check for follow-up material | 
| 489883 | GR Quantity during order for process material | 
| 440857 | Problems with batches for order items | 
| 356558 | Short dump: 'Raise exception MISSING_MAT_DATA' |