Solution : https://service.sap.com/sap/support/notes/524579 (SAP Service marketplace login required)
Key words :
enter view cluster vc_tcg03, c1a20 foreign key field, remaining fields stay empty, terms ehs27bsp04psehs31sp02ps reason, ddic objects - names, bbos buffer layer, start transaction sm34, system data records, 7b support package 03, 7b support package 04
Related Notes :
| 1406547 | Program RC1PHDEL requires excessive runtime |
| 521334 | Corrections EH&S 2.7B: Support Package 04 |