Thanks Ramon, I will take this into account.

I have a certain audience that I use in basically all my workflows. At a certain moment I found out I needed to edit the definition of the audience in order to get rid of certain test addresses in my output. It turns out that it does not work immediately, the test addresses were still in my output. ...

Thanks for your response. It's a pity that this is the only way, but good to know.

An existing workflow for sending recurring emails somehow became corrupt. I made a new workflow and now I want to connect that to the existing email message. Is that possible?