In order to respond to a client's need, I'm supposed to add a column that contains URL links. The client want to access to .pdf files through these URL. Therefore, I did parameter the column for that like the following :
The first issue I'm having is that I couldn't use this feature in a cross table.
The second problem was that when the link is external to the machine I'm using (another server), it shows the error 404.
NB : I created a virtual folder in IIS manager and included it in the URL but it still doesn't work
Unfortunately, I don't believe you can have clickable links in Pivot tables like you can in normal tables in Qlik Sense. Your options would be to either use a regular table instead or to have a button object next to your Pivot table that would be conditionally clickable when =GetSelectedCount([someField]) = 1, for example (see attached GIF).
As for your second issue, I'm not totally sure how to address that, as I'm not familiar with IIS virtual directories. Perhaps an issue with white listing or ports being locked down from outside the server? Doublecheck your firewall settings.