Solution : https://service.sap.com/sap/support/notes/112732 (SAP Service marketplace login required)
Key words :
additional key words kea5, table/view yyyyyyyyxxxxx stands, data element rkeg_xxxxx, data elements listed, rkeg_xxxxx data element, attached abap zzdelder, edit -> delete fieldwhen, yyyyyyyy stands, table/structure, table -> activate
Related Notes :
| 206827 | Error message w/deletion characteristic/value field |