It is not recommended. It is unreasonably risky to give delete rights to the SAP user required for the interface. For system-oriented aspects, it is therefore unwise to delete purchase requisitions (SAP). Furthermore, it is possible to avoid an inadvertent transfer of requisitions to SAP by means of a triple release mechanism in Smart Materials. In addition, an organized measurement needs to be developed in order to control what needs to be undertaken to really delete a purchase requisition (SAP) in SAP.