Solution : https://service.sap.com/sap/support/notes/651612 (SAP Service marketplace login required)
Key words :
sy-subrc <> 0 return code, modify statements ends unsuccessfully, field symbol reason, original data object, latest 620 kernel patch, unsuccessful operationpatch level, field symbol type, modify statements, field symbol, data object
Related Notes :
749078 | RUNT_ILLEGAL_SWITCH with REFERENCE INTO |
19466 | Downloading SAP kernel patches |