Solution : https://service.sap.com/sap/support/notes/692281 (SAP Service marketplace login required)
Key words :
disable excessive overconfirmation warnings, hide overconfirmation warnings, personal performance losses, specific business process, terms product view, source code corrections, menu system - userprofile -, /sapapo/bopi_warnoff parameter, transaction /sapapo/bopi, /sapapo/bopi
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1546149 | BOPI(N): shortage & overalloc messages although BOPI_WARNOFF |
650449 | Collective note for GATP Performance in SCM 4.0 |
420606 | Collective SAP Note for GATP performance in APO 3.0A |