I have a Designer 2013 Workflow on a subsite (B) that needs to query a calendar on its parent site (A), to see if there is a matching entry in the calendar. If there is no matching entry, I want to create an item on that calendar.
My workflow queries the calendar on A via a REST call to a web service.
When I run my workflow, I get "Forbidden" in the responseCode. I got this before wrapping the code in an App Step, and I am still getting it after configuring both the parent site and the subsite to allow workflows to run using app steps, and adding an app step to my workflow. What am I missing here?
PS- I can confirm that the url to the web service I'm calling works - if I copy it out of the app step and paste it into my browser, I get the results I expect to get from the query.