Setting Folder permissions in Plesk

1. Log into Plesk panel.
   
   
2. Click on Files Tab.
   
   
   
   
3. Click httpdocs folder which is your root folder.
   
   
   
   
4. Navigate to the folder you want to change the permissions for. In this example, we're modifying the "Products" directory.
   On the right hand side of the folder click on the drop down then "Change Permissions"
   
   
   
   
5. Click on the appropriate User from left e.g. Application pool group next adjust the permissions as required (write) on the right to be ticked and then click Ok to save.
   
   
   
   
6. You are done. You can try again in your site to confirm it is now working as expected.