I am trying to figure out how or if it is possible to call an application page from inside a SPD 2013 Workflow.
I tried a HttpRequest action and entered the Url of the application page. The page is located inside the layouts folder of the Server.
When I check the ULS Logs I can see that the page is called, but in the context of a user with no claims and who is not authenticated, so the Code behind the aspx Page is never executed.
I tried running the operation in an app step after giving the Workflow app full permissions -> same result. I then read somewhere to set the RequestHeader to Authorization= "", but I still can see the same entries in the ULS and the Page's code is never really executed.
Can somebody tell me if and how it is possible to call an Application Page of the SP On premise server which contains the list on which the Workflow operates on?
If what I am trying to do is not possible, do you have any ideas how to achieve what I want to do. I want server side code to be called from inside a Designer Workflow.
best regards Alex