A License ID is a 32 or 12 character case-sensitive string that is unique to your Account, and used in the URLs to view videos.
Your License ID identifies your Account to our media servers to insure that only authorized users may view your videos.
Normally, your License ID is automatically determined based on your IP Address. Generally speaking, the only time that you need to do anything is if you are using MARC records. In this case, the streaming URL within those records must be edited to use your License ID within that URL.
Your License ID is located on your Account Page and also on the downloaded spreadsheet of your licensed video links.