Solution : https://service.sap.com/sap/support/notes/338235 (SAP Service marketplace login required)
Key words :
additional key words sap enhancement coomks01transaction smod, user-defined additional fields work correctly, create/change/display cost centers, create/change/display cost center, enter cost center master data, cost center standard hierarchy maintenance, user-defined additional fields, cost center master data, change object component 'components', shorttxtsaplkma1 3399 custflds saplxkm1 0999if
Related Notes :
| 979787 | Standard hierarchy for bus processes: Customer-spec fields |
| 141707 | Customer enhancements: Checks for CO master data |