Solution : https://service.sap.com/sap/support/notes/950861 (SAP Service marketplace login required)
Key words :
work item instance, relevant support package, message class swf_plog, technical workflow log, technical log, termination message, message number 011, transaction swi1, system issues, terms wf_upg
Related Notes :
| 1068627 | Composite note about workflow upgrade |