Solution : https://service.sap.com/sap/support/notes/979787 (SAP Service marketplace login required)
Key words :
short text saplkwm3 3399 custflds saplxkw3 0999 additional fields, display business processes work correctly, customer-specific additional fields, -> screen areas section, terms sap enhancement, coombp01 sap enhancement, area called screen, cmodstandard hierarchy transaction, business processes, saplxkw3 reason
Related Notes :
| 338235 | Cost center standard hierarchy: user-defined fields |