Solution : https://service.sap.com/sap/support/notes/81656 (SAP Service marketplace login required)
Key words : 
additional key words, collective order, transaction co01, routing operations, program error, solution correct, implement note 42195, allocations, components, allocation
Related Notes : 
       
| 91179 | Validity of component allocation in prodn. order | 
| 84107 | |
| 82838 | Component allocation of assemblies (prodctn order) | 
| 82644 | Component allocation of phantom assemblies (routing) | 
| 78747 | COR2/CO02 with alternative components: Short dump | 
| 73259 | CO01: Allocating components to an operation | 
| 42195 |