Solution : https://service.sap.com/sap/support/notes/483950 (SAP Service marketplace login required)
Key words :
terms edi ordrsp ordchg reqote sapscript ttxob lvedcf0f idoc_output_ordrsp idoc_output_quotes reason, symptom edi outbound order confirmation, 1st idoc type orders01, assigned idocs segments, idoc segments, text lines, sales documents, 72nd place, field definitions, edifact-standard
Related Notes :
554493 | EDI ORDERS: Texts from sales order reduced to 70 characters |
499488 | EDI INVOIC: Text segments only include 70 characters |
494149 | Text Lost in EDI segments on header and item level. |