Solution : https://service.sap.com/sap/support/notes/755029 (SAP Service marketplace login required)
Key words :
activate large object sets, import support packages simultaneously, basic support package lower, dependent dictionary objects, support package higher, initial object set, terms act phase, program versions provided, obsolete version implemented, correction instructions solve
Related Notes :
| 556764 | Upgrade hangs in phase ACT_<REL> |