Paste in the URL Prefix (ie. for our URL, advisory.jamfcloud.com - advisory is the prefix), Username and Password, check "Is Active Account.", and click Update.
NOTE: The JSS Admin password cannot have a hash symbol ("#") in it or else it will not work. If it does, you should change the password in Jamf and update the IT Glue entry.
Example:
Once completed, make sure to copy the API information and put it in the API Keys section of the relevant client.