Solution : https://service.sap.com/sap/support/notes/534114 (SAP Service marketplace login required)
Key words :
transfer saved table contents, import support package2, table contents, upgrade/import, support package, modified object, deleted objects, report saprupgm, transaction se38, customer namespace
Related Notes :
534208 | Ramp-up 1: Upgrading to SAP R/3 Enterprise Core 4.70 |