https://userapps.support.sap.com/sap/support/knowledge/en/3616407
3616407 - Referenced document items are also in XVBAP[] when creating a SD Sales document in SAP...
In S/4 system, when creating a SD sales order in VA01 with reference to a sales order, or sales contract, etc, when logic goes to USEREXIT_SAVE_DOCUMENT, it is...