Solution : https://service.sap.com/sap/support/notes/74000 (SAP Service marketplace login required)
Key words :
settings -> workflow settings -> maintain substitute, underlying single step tasks, personal workflow settings, sap_basis 700sap_basis 700 offers, field wflow autof, substitutionappropriately authorized employees, includes user b', transaction pp01 maintaining, organizational management function, user substituting user
Related Notes :
| 547419 | FAQ workflow, settings and Customizing |