Workflows for releasing purchase documents!

[Márton Zsolt]

Hi all!

One of our customers - they are using standard workflows for releasing purchase documents   for a long time - request is to change the workflows in a such a way, that workflow is started automatically only at the first time, when the release step is created; when the document is created. That is to say, they don't want to restart the workflow when the release step is canceled. In that case they want to start manually. Does anybody know a good solution to this problem?
The problem is not how to start manually the workflow (they are already using this), but how to not start when the release is canceled. 

My idea is, to create a new starting event, but in that situation, my workflow will run just once, because at the second level the workflow is not triggered, the release step is not created.

Any idea is welcome
Regards
Zsolt