Error developing a task for workflow processing

Question

I made a very simple workflow to try to process an IDoc. First I took a look at what seems to be the SAP standard example of a workflow that processes IDocs (workflow WS20000378 - ORDERS - Incoming orders with workflow), tested it to verify it works, then took one step from that (the step that processes the IDoc) into a new workflow, checked the bindings between workflow container and task, then activated it and bound it to an inbound process code.
When I try to process an IDoc using the test tool, after setting up the partner profile correctly, it informs me that:
"IDoc inbound: Container definition for task WS90100001 has errors".
And the exact reason stated is:
(1) : The container definition does not contain the parameter 'IDOC_PACKET'.
(2) : The container element is not defined as an object type.
(3) : No object type could be determined for the container element 'IDOC_PACKET'.
Well I had already added the element IDOC_PACKET to the workflow container, and I have checked that it is defined exactly the same way as for the example workflow, but it just doesn't work.
Any suggestions how to proceed?
Kind regards,
Tony.

Answer 1

Hi Tony,
Sounds odd, should work. Just to discount any buffering, run tx SWU_OBUF and click on refresh. Failing that, try logging off from SAP and back on (don't laugh, it's done the job for some bizarre ones before).
Alternatively, copy WS20000378 (which works) to a new flow and delete all the steps you don't need.
Cheers
Mike