Solution : https://service.sap.com/sap/support/notes/129955 (SAP Service marketplace login required)
Key words :
field/structure reference type proposal optional refresh_itab, additional key words interface designudef, user-defined types exist, user-defined type, program errorthe precondition, import parameter ref, import parameter, characteristics group, valuation screen, dump occurs
Related Notes :
108762 | Terminations when valuating UDEF characteristics |
105526 | 4.5A:Charc.group.displ.incrrctly in multi-lvl conf. |
103781 | @3Z@Interface design - collective note |