Our pleasure Robert. I've just confirmed that it is still in development and I've been able to determine that we are developing a Task API that should be able to tell you when a task is still in a "Running" state or if it is in "Active" state which means that it completed.
Furthermore, if you wish to also determine "success" of the campaign/task, then you would call our Occurrence API to confirm the "success" of the task occurrence before executing your "Campaign B".
I just wanted to share what I know right now although some of this is subject to change since it is still in development. I hope this helps.
... View more