Solution : https://service.sap.com/sap/support/notes/893976 (SAP Service marketplace login required)
Key words : 
prerequisites program error solution implement, terms vehicle management system, symptom manual pricing, creating po, velo transaction, purchase order, lvelo10f05 reason, attached corrections
Related Notes : 
       
| 855514 | Current Release Restrictions for DBM 500 for Ramp Up |