Hope you were able to find answer to your first post (Qlikview API). If so, then can you close this thread by marking helpful/correct answer.
Secondly, what do you mean by " I create discussion but it is not located on the site", are you not able to find any discussion/thread that you have created on community?
If so then you can search with any keyword from your thread/discussion. Search box is available on the top right corner. Hope this helps!
