Problem using Service TaskProcessing in Fiori Workflow Scenario

Hey all,

I'm facing a problem using the workflow service TaskProcessing within the Fiori Launchpad. I get a HTTP request failed caused by a RFC call.

I think the error is raised while reading the decision options of the workitem. In Fiori Launchpad the number of workitems is correct. And some data is also been read when I navigate into the app.

Our gateway server is currently located on a crm System. Hopefully we get a central stand alone gateway server soon. The workflow which I want to access is in the crm system so the RFC connection is "LOCAL_PGW". Maybe I did something wrong in the customizing?

Actually I really don't know where to look. Where can I find the function call of /IWWRK/WF_TGW_TASK_DET_READ? I don't even get any hints reading the error log.

I'm thankful for any help.

Best regards.

Ben