Troubleshooting - Advanced Product Feeds

Error message: "You don't have permission to access /index.php/feedexport/adminhtml_feed/save/id/2/key/fab85a07526579609c8e239df07b3dd6/back/edit/ on this server"

Error could appear if you try to save feed, filter or make some other actions with extension.
This problem is related to restriction on server to save requests with some php code, html tags or other forbidden symbols.
Solution:
Please ask system administrator to provide required permissions.

Error message when click Feed Generation button: "Can't remove folder /magento_root/media/feed/tmp/2"

This problem is related to wrong permissions on folder /magento_root/media/feed/, therefore extension can't delete/save file at feed media folder.
Solution:
You need to to set recursive permission to the folder /magento_root/media/feed/ on your server.