S&OP: Downloading Plan Data Workflows

Hi,

We are using demantra 731. We launch workflows  to download plan scenario data through method which in turn calls workflow to download plan scenario data. The issue we are facing is that after successful completion of download workflow, second time when we launch it, this goes to WAIT state. As a result we need to login to workflow manager to terminate the first time session. Is this an expected behavior...? This is creating dependency on support guys so that they can terminate the first session before launching it the second time.

Thanks.