Solution : https://service.sap.com/sap/support/notes/525853 (SAP Service marketplace login required)
Key words : 
system processes error message cn630 correspondingly, incorrect owner plkonet, attached program correction, configurable standard network, configure standard network &, variant configuration reason, program error, standard network, owner afpo, operative network
Related Notes : 
       
| 526195 | Network, change characteristic value assigmt: MESSAGE_TYPE_X | 
| 525403 | Delete network production order component: Configuration | 
| 446554 | Incorrect configuration version when copying order | 
| 351282 | COCM1: Incorrect CUOBJ is set when order is transferred | 
| 197608 | Copying configuration for networks |