Looking for logging into the Vpp site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Vpp site. After that you can login as usual with your login credentials.
https://volume.itunes.apple.com/WebObjects/MZFinance.woa/wa/login?cc=us
https://vpp.itunes.apple.com/WebObjects/MZFinance.woa/wa/login?cc=us
https://vpp.itunes.apple.com/
https://myvisiononline.co.uk/vpp/login.jsp
https://www.jamf.com/jamf-nation/discussions/26297/vpp-sign-in-now-opening-itunes-but-timing-out
https://www.jamf.com/jamf-nation/discussions/22047/vpp-apps-assigned-to-device-prompting-itunes-sign-in-screen
https://support.zuludesk.com/hc/en-us/articles/115002304454-VPP-AppleID-Assignment
https://support.jamfnow.com/hc/en-us/articles/205288155-Setting-Up-Volume-Purchasing-via-the-Volume-Purchasing-Program
https://www.vpppa.org/login
https://www.insidenissan.com/
http://www.vetcor.com/login
https://www.vpppa.org/
https://docs.jamf.com/10.6.0/jamf-pro/administrator-guide/Login_and_Logout_Hooks.html