Solution : https://service.sap.com/sap/support/notes/395762 (SAP Service marketplace login required)
Key words :
Related Notes :
| 890228 | OKB3: Creating the cost element category 90 |
| 684659 | FAQs about account assignment objects as of Release 4.70 |
| 504716 | KI260 for stat. order/project and cost element category 90 |
| 396001 | No field status check w/ postings to asset bal.sheet acct |
| 75980 | Creat.cst elem: KS036 "G/L acc. & is a bal.sh.accnt" |