Solution : https://service.sap.com/sap/support/notes/740103 (SAP Service marketplace login required)
Key words : 
terms duplicate row conditions copy reason, symptom copy button, prerequisites missing functionality, note 739462 prerequisite 739462 solution, working properly, service contract, note 739462, applying 739462
Related Notes : 
       
| 747299 | EBP/CRM 3.0 SP Stack 06/2004 (SAPKU30019): Release&Info.Note | 
| 739462 | Copy Button Not working properly in Service Contracts |