Renat, It will be helpful to perform a callback on completion of the async workflow. Can we add on-finish to the workflow spec and when workflow completes, runs task(s) defined in the on-finish section of the spec? This will allow the workflow author to define how the callback is to be done. Here's the bp link. https://blueprints.launchpad.net/mistral/+spec/mistral-workflow-on-finish Thanks. Winson -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20140827/731bc766/attachment.html>