Solution : https://service.sap.com/sap/support/notes/907189 (SAP Service marketplace login required)
Key words :
scm basis -> order document management -> generate settings, scm basis -> order document management -> activate settings, prerequisites missing/renaming database field solution, handling unit header level stored, select activity 'generate order component', select radio button 'data type', select activity 'activate order component', press button 'sap reference img', enter data type '/scmb/dm_dlv_itm_ext_str', enter data type '/scmb/dm_delvry_hu_str'
Related Notes :
| 836457 | ICH5.0 Order Documents: Required Steps in Customizing |