Solution : https://service.sap.com/sap/support/notes/36319 (SAP Service marketplace login required)
Key words : 
additional key words assembly processing, incorrect confirmation date, incorrect availability check, assembly order, shipping point, sales order, order item, delivery scheduling, possibly changed, component availability
Related Notes : 
       
| 87612 | Third-party: Error on changing storage location | 
| 49681 | 3.0E: Error 61588 when changing route/shipping point |