Solution : https://service.sap.com/sap/support/notes/924727 (SAP Service marketplace login required)
Key words : 
editable item list including fast entry, contact component xx-proj-dbm, industy development - quality managementgeneral restrictions, statements corresponds tothe date, support package dbm500 sp03, restrictions affect planned functionality, solution dear customer, multi-resource scheduling, sap_basis support package 16, upcoming support packages
Related Notes : 
       
| 931434 | Installing DBMC 100 on SAP ECC 500 | 
| 930417 | |
| 930301 | |
| 929614 | |
| 928335 | |
| 928283 | |
| 928179 | |
| 927874 | |
| 927843 | |
| 927344 | |
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| 926599 | |
| 926254 | |
| 925799 | |
| 925763 | |
| 925760 | |
| 925754 | |
| 924969 | |
| 924731 | |
| 924592 | |
| 924574 | |
| 924547 | |
| 924360 | |
| 923874 | |
| 923871 | |
| 923826 | |
| 923804 | |
| 923535 | |
| 923534 | |
| 923531 | |
| 923466 | |
| 923315 | |
| 922838 | |
| 922737 | |
| 922460 | |
| 907597 | Short dump on opening message log in WTY transaction. | 
| 741821 | Release limitations concerning SAP ERP 2004 | 
| 731290 | Current release restrictions for ECC DIMP 5.0 |