Solution : https://service.sap.com/sap/support/notes/153489 (SAP Service marketplace login required)
Key words :
additional key words sy-langu, create form routine get_header_data, system logon language, purchase order texts, key language, purchase orders, htext-tdspras, ekko-spras, lfa1-spras, header text
Related Notes :
| 197958 | BAPIs for purchase orders: Missing functions |
| 153009 |