Local file attchment from hidden field value

Replies: 0

Hi,

I’m trying to attach a local file (located in wp-content -> uploads/2020/12/test.pdf).
It works when I put “uploads/2020/12/test.pdf” in the “File Attachments field”. But the path of the file needs to be dynamic.
So I created an hidden field with the value of file path and put the shortcode [prog] in the “File Attachments field”. And this method doesn’t work.

Does someone know a way to do this ?

Thanks for your help.