Solution : https://service.sap.com/sap/support/notes/520161 (SAP Service marketplace login required)
Key words :
parameter commit_control basically determines, internal commit control bapis, internal commit control, import parameter commit_control, external commit control, respective bapi performs, update/commit work, solution note 131838 explains, aforementioned business objects, current /luw transaction
Related Notes :
651895 | PPM maintenance: Changes made to PPMs using BAPIs not saved |
439390 | APO-BAPIs: FAQ, error messages, tips and tricks |
131838 | Collective note for BAPIs w/ 'Commit Work' command |