Receiving IDocs

This section shows how to receive and process a MATMAS IDoc. To configure your SAP system to send MATMAS IDocs, see Setting Up a Test Environment for IDocs.

Receiving a MATMAS IDoc #

Create an RFC Server object to accept calls from SAP, see RFC Server for more information.
To receive IDocs with the RFCServer object, set the property CanReceiveIdocs to true.

When an IDoc is received by ERPConnect, the event IncomingIdoc is triggered and a reference to the RFCServer object and to the IDoc object is transferred. Use this event to process the IDoc object as shown in the code below.

static void Main(string[] args) 
{ 
  // define server object and start 
  RFCServer s = new RFCServer(); 
  s.Logging = true; 
  s.GatewayHost = "sap-erp-as05.example.com"; 
  s.GatewayService = "sapgw11"; 
  s.ProgramID = "ERPTEST"; 
  s.CanReceiveIdocs = true; 
  s.IncomingIdoc+= new ERPConnect.RFCServer.OnIncomingIdoc(s_IncomingIdoc); 
  s.InternalException+= new ERPConnect.RFCServer.OnInternalException (s_InternalException); 
  s.Start(); 
  
  Console.WriteLine("Server is running. Press any key to exit."); 
  Console.ReadLine(); 
  s.Stop(); 
}

Processing a Received IDoc #

In this example the received IDoc contains material descriptions that can be written into the console window to check the contents of the IDoc.
The IDoc is analyzed using the E2MARAM005 segment. Within this segment, several E2MAKTM001 child segments contain material descriptions.

Note: You can use the transaction WE60 to look up the structures of IDocs in SAP.

Read the data buffer with the ReadDataBuffer method to access the description texts in the child segment E2MAKTM001. The description text is located at index 4 with a length of 40.

private static void s_IncomingIdoc(RFCServer Sender, Idoc idoc) 
{ 
  Console.WriteLine("Received Idoc " + idoc.IDOCTYP); 
  IdocSegment e2maram = idoc.Segments["E2MARAM005",0]; 
  for (int i=0; i < e2maram.ChildSegments.Count;i++) 
  { 
      if (e2maram.ChildSegments[i].SegmentName == "E2MAKTM001") 
      { 
          Console.WriteLine("Materialtext found: " + e1maram.ChildSegments[i].ReadDataBuffer(4,40)); 
      } 
  } 
}

Write the description texts into the console window.
Run the program, send an IDoc in SAP and check the result. In this case, 5 E2MAKTM001 segments were found so 5 texts are passed.

Note: If you do not want to read the data buffer with offset and length of the texts, you can load an XML Schema instead, see Using XMLs for IDocs.

Receiving a MATMAS IDoc #

Processing a Received IDoc #

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