Solution : https://service.sap.com/sap/support/notes/769946 (SAP Service marketplace login required)
Key words :
quantity-based overhead rates, runtime error perform_not_found occurs, initial table/view screen, generate table maintenance dialog, form routine call_by_cluster_only stays, form routine call_by_cluster_only called, table/view field, form routine call_by_cluster_only, called transaction se54, information message sv137
Related Notes :
| 681461 | Costing sheet: Views cannot be maintained directly |
| 126551 | Composite note: Customizing of costing sheet |