Solution : https://service.sap.com/sap/support/notes/204853 (SAP Service marketplace login required)
Key words :
enter text 'user exit periods', settings --> user exit periods, text 'user exit periods', choose 'edit --> insert --> entry', open menu option 'settings', user exit 'user_exit_001_ps', choose 'dynamic text', 'menu bar' option, period total display, stock/requirements list
Related Notes :
| 208025 | MRP: Setting users exits, documentation |
| 194404 | MD04: User exit in period totals |