Solution : https://service.sap.com/sap/support/notes/449216 (SAP Service marketplace login required)
Key words :
accounted blanket purchase order, blanket purchase requisition, blanket purchase requisitions, purchase requisition reason, blanket purchase orders, service orders, subsequently change, material group, valuation class, account assignment
Related Notes :
| 663983 | ME22(N), ME52(N): No new G/L account from material group |
| 633986 | FAQ: Account assignment in the service |