Error: "External User ID can not be determined"
The source of this error is cached information in the web browser. To bypass this error, access the same web page in the same browser while using an InPrivate Window (Microsoft Edge), a Private Window (Apple Safari or Mozilla Firefox) or while in Incognito Mode (Google Chrome). If the website does not display the same error message ("External User ID can not be determined") under these circumstances, the encountered issue should be resolved by clearing your browser's cache. Instructions for completing this troubleshooting task can be found on this site:
https://kinsta.com/knowledgebase/how-to-clear-browser-cache/
In the event the suggestions above fail to load the page successfully, we find that sometimes it's also necessary to delete any Fuller-related cookies saved to the browser settings (or alternatively, clear all cookies). Instructions for completing this troubleshooting task can be found on this site:
https://www.lifewire.com/how-to-delete-cookies-2617981
If the troubleshooting steps still do not provide access, please contact the Tech Support office to receive further assistance.