Solution : https://service.sap.com/sap/support/notes/602306 (SAP Service marketplace login required)
Key words : 
entry -scm scm-em general restrictions, entry -scm scm-bas-df, component scm-bas-df, sapi scm crm-mw, scm-bas-df, entry -crm-mw-, em application interface, em interface application, solution dear customer, enter problem messages
Related Notes : 
       
| 743391 | SAP SCM 4.0 SP stack 07/2004: Release & information note | 
| 722062 | SAP SCM 4.0 SP stack 04/2004: Release & information note | 
| 711292 | SAP SCM 4.0 SP stack 03/2004: Release & information note | 
| 696859 | SAP SCM 4.0 SP stack 02/2004: Release & information note | 
| 556414 | |
| 535631 |