DDE error Poke Failed

[xcarma]

Hi

First of all I am a beginner with python and I am a bit fooling around
to check wich possibilities I have. I'm trying to get some data to an
internal developped application.

Server: DDE
Topic: SCSDDeServer
Item: SendCustomerData
Item data: value, value, value

I got the following code

import win32ui, dde
server = dde.CreateServer()
server.Create("test")
conversation = dde.CreateConversation(server)
conversation.ConnectTo("SCS","SCSDDeServer")
conversation.Poke('"SendCustomerData", "S1234567,,"')

When I run this I get

Traceback (most recent call last):
File "U:\python\scs.py", line 6, in <module>
conversation.Poke('"SendCustomerData", "S1234567"')
error: Poke failed

Am I doing anything wrong? Or is it possible that the SCS application
only accepts pokes from a specific program?

Regards

Maarten