oRenewPO = oCompany.GetBusinessObject(SAPbobsCOM.BoObjectTypes.oPurchaseOrders)
oRenewPO.GetByKey(Integer.Parse(latestEntryCode))
oRenewPO.Lines.SetCurrentLine(0)
oRenewPO.Lines.Delete()
When I use delete method, each document lines was deleted! I just wanna delete Line "0", not all document Lines.
My SAP b1 version was 2005B PL43. Should I upgrade to latest version?