Solution : https://service.sap.com/sap/support/notes/637345 (SAP Service marketplace login required)
Key words :
bapi table extension structure bapi_te_, ps master data tables proj, master data tables, mutually convert ls_bapi_te_, logic previously provided, bapi_te_network_act_element activity element, bapi_te_project_definition project definition, bapi_te_wbs_element wbs element, replace structure ci_, bapi_te_network_activity network activity
Related Notes :
1393723 | CNIF_PI: Syntax Error with non char fields in CI structures. |
509898 | BAPI enhancement concept and Unicode |