Solution : https://service.sap.com/sap/support/notes/329772 (SAP Service marketplace login required)
Key words : 
62b                        start abap rv80hgen, support package 1 material number 51011164, support package 1 material number 51013136, latest spam update, conflict resolution transports, repository switch upgrade 4, sap service marketplace, select single request, select 'system -> status', spam update version
Related Notes : 
       
| 212075 | Release strategy for IS-H | 
| 212072 | IS-H collection note: Overview of notes for Release 4.6 |