Can we create/update Approval field in work item type through Rest APIs?

I had actually started it as a follow up action as that made intuitive sense to me, but I ran into issues getting it to work due to some internal state management that EWM does. I could only get it to work as a precondition.

As far as I can tell, there is no public supported REST or otherwise public supported HTTP based API available to create, update Approval data in EWM work items. There is a reportable REST API that allows to GET the data - look at the example on my blog.

I have solved this via a custom precondition. See it in action here:

I appreciate the kind words, Ralph. Your blog helped tremendously in getting this done. Hardest part was the UI.