Solution : https://service.sap.com/sap/support/notes/1019080 (SAP Service marketplace login required)
Key words :
event linkage tables due, terms evt_upgrade reason, avoid duplicate entries, relevant support package, xx system requires, instance linkage table, event linkage, system checks, target table, object categories
Related Notes :
| 1082490 | XPRA RSWFEVTXPRA does not convert all instance linkages |
| 1068627 | Composite note about workflow upgrade |
| 808790 | ERP 2004: Optimization of XPRAS_UPG upgrade phase |