https://userapps.support.sap.com/sap/support/knowledge/en/2757689
2757689 - BAPI_PO_CREATE1 does not update Header Text or Unloading Point | SAP Knowledge Base...
When you attempt to create a Stock Transfer Order (STO) using the BAPI function BAPI_PO_CREATE1, you notice that the following fields are not being filled in...