Solution : https://service.sap.com/sap/support/notes/527995 (SAP Service marketplace login required)
Key words :
prerequisites ekpo-stapo field exists, correct existing purchase orders, incorrect purchase order items, indicator ekpo-stapo set, terms ekpo-stapo, symptom statistical indicator, ekpo table, ekpo-loekz, deleted items, deletion indicator
Related Notes :
358293 | ME21N: Problems when deleting/undeleting |