Solution : https://service.sap.com/sap/support/notes/403714 (SAP Service marketplace login required)
Key words : 
additional key words online store, prerequisites function module bapi_adv_med_get_prices, attached source code corrections, unloading point exists, default unloading point, default goods recipient, online store, unloading point, goods recipient/, goods recipient
Related Notes : 
       
| 78119 | Create and simulate dialog box in BAPI sales order |