Solution : https://service.sap.com/sap/support/notes/1545836 (SAP Service marketplace login required)
Key words :
method update_non_pco_item_status reason, correction instruction attached, sus purchase order, purchase order, multiple items, cancelled items, program error, support package, cl_sus_m_order_detail, prerequisites
Related Notes :
| 1062825 | Errors in SUS ASN , SUS Invoice and SUS Confirmation |