Solution : https://service.sap.com/sap/support/notes/883794 (SAP Service marketplace login required)
Key words :
swwerre background job starts, swwerre background jobas, inconsistent statuses caused, manual preliminary activities, swp message class, work items locked, work item &1 locked, modeled process control, short dump reason, attached correction instructions
Related Notes :
885179 | Lock problems occur with work items to be set to obsolete |