Log in Frequently Asked Questions

Frequently Asked Questions Description of problem: After entering the login data in the login mask in the secure area, the following text appears on the screen: "Login unsuccessful. Please enter a valid username and password." Cause: The password and/or the user number were entered incorrectly. Description of problem: You can only save the document from the invoice overview in the secure area in the "Digital Invoices" menu, you cannot open it. Cause: The document is either a PDF or TIF file. Please check whether Acrobat Reader or a TIF Viewer is installed on your computer. You can check if you have Acrobat Reader or a TIF Viewer installed on your computer by clicking the following link: Example PDF file Example TIFF file If you do not have them installed, please install Acrobat Reader or a TIF Viewer. The download links are located on the login page. Please note: Acrobat Reader can only be installed once Internet Explorer has been installed.