As solved on the following post, I understand how automatic sending of reports are triggered via event actions. 

Reprint Invoices Automatically Emailing | IFS Community

My question is, only one of the users, when trying to make changes and print / reprint the PO, sends it automatically to the Supplier. When I try it with my user, it doesn't happen. I’ve checked the conditions for the event ‘PDF_REPORT_CREATED’ and this is how it looks like:

This PO dosen’t belong to the site above as well, fyi 

Happens with only one user, not for everyone.