Solution : https://service.sap.com/sap/support/notes/889855 (SAP Service marketplace login required)
Key words : 
valuated goods receipt blocked stock, valuated gr blocked stock, gr-based invoice verification, goods receipt blocked stock, goods receipt document, goods receipt, system cancels, terms weora, bwesb reason, purchase order
Related Notes : 
       
| 1110140 | Valuated goods receipt blocked stock: Restrictions (FAQ) | 
| 1095226 | MvT 107 cannot reverse (error M7 330) |