Solution : https://service.sap.com/sap/support/notes/1168174 (SAP Service marketplace login required)
Key words :
/AFS/SZIN, /AFS/CTIN, Size conversion, Conversion type, PO, Idoc, BAPI_PO_CREATE, BAPI_PO_CREATE1, EKET
Related Notes :
| 934129 | FAQ's on AFS-Purchasing |
| 589411 | AFS: BAPIs in purchasing |