Solution : https://service.sap.com/sap/support/notes/430014 (SAP Service marketplace login required)
Key words :
general additional key words checklistsd, affects sales document created, billed order-related completely, existing sales documents, symptom open questions, related notes, 'fully billed', created due, referenced completely, 'referenced completely'
Related Notes :
426980 | CHECKLISTSD: Create/change texts via BAPIs |