Solution : https://service.sap.com/sap/support/notes/216585 (SAP Service marketplace login required)
Key words :
kna1 knvp lifnrkna1 knvp pernrkna1 knvp parnrthe procedure, additional key words xd99, prerequisites solution implement, attached program corrections, customer master, maintain partners, type 'customers', mass maintenance, additionally include, note 216596
Related Notes :
| 385295 | XD99: KNVP-PERNR, -PARNR, -LIFNR unavailable |
| 216596 | Include additional fields in mass maintenance |