Solution : https://service.sap.com/sap/support/notes/889264 (SAP Service marketplace login required)
Key words :
'system settings -> activate restart' menu option, terms switch framework reason, transport object r3tr sf02, tp transport control program, sfw_activation_in_background2 program exists, business functions automatically, transport request, target system, source system, system behaves
Related Notes :
| 1126164 | Transporting inactive translations/Switch Framework |
| 19466 | Downloading SAP kernel patches |