Solution : https://service.sap.com/sap/support/notes/95359 (SAP Service marketplace login required)
Key words :
additional key words sd_order_subsequent_allowed, sales order item, production order processing, order item, production order, sales order, forbid processing, assembly order, change mode, entire document
Related Notes :
94354 | Inconsistency sales order item - assembly |
86797 | Deleting/rejecting sales order item with assembly |