Diagnosis
Extraction into a local file requires a GUI connection. It cannot beexecuted in a background job, such as within a process chain.

Procedure
For periodic process chains with InfoSpokes, data should be writtent tothe application server and not to local files. No GUI connection isrequired here. In other words, the extraction can run in thebackground. Also: Extraction on the application server can deal withmass data. This is because the data is transfered in packets.