Solution : https://service.sap.com/sap/support/notes/957838 (SAP Service marketplace login required)
Key words :
customizing spro->crm->transactions->basic settings->define item categories, main item category, main item automactically, propose delivery group, delivery group, sales order, changed manually, crmd_order reason, attached correction, prerequisites
Related Notes :
| 1223257 | Changes not transferred to delivery group schedule line |
| 940761 | delivery group is not generated correctly |
| 891297 | Add-On /ASP/ Rel. 3.00, R/3 4.70: Support Package 05 |