Solution : https://service.sap.com/sap/support/notes/896466 (SAP Service marketplace login required)
Key words : 
terms dswp reason, log retention period, log entry types, call transaction slg1, log entries, transaction sm30, solution manager 4, issue tracking, service plan, view vdmd_applog_cust
Related Notes : 
       
| 1161294 | Name chg, SAP Solution Manager 4.0 to Solution Manager 7.0 |