When used with the SAP product, this user property is ignored by the SAP Connector in the inbound direction (receiving IDOCs from SAP). In the outbound direction (sending IDOCs to SAP), the SAP Connector populates the control segment MESTYP field using the value of this user property before sending each IDOC to SAP.
Values: Logical message type corresponding to the IDOC. For example, DEBMAS or MATMAS.