Solution : https://service.sap.com/sap/support/notes/485263 (SAP Service marketplace login required)
Key words :
extras -> change document log, temporary database table est_change_docs, specification managementin specification management, change document logcg02, database table est_change_docs, 7b support package 02, 7b support package 03, environment parameter cd_protocol_start_date, environment parameter cd_protocol_start_time, environment parameter cd_protocol_save_period
Related Notes :
| 1381594 | Runtime error when you choose "Extras->Change Document Log" |
| 481056 | Corrections to EH&S 2.7B: Support Package 03. |