Solution : https://service.sap.com/sap/support/notes/1644192 (SAP Service marketplace login required)
Key words :
shopping cart sc compared, realtime fi validation, missing erp return, message type 'bs', po 'transaction type, shopping cart, prerequisites sc, message control, po creation, system status
Related Notes :
| 1090580 | E: BS 013 - System status & is active (&) |