Permission Denied for Worklogs URL

Permission Denied for Worklogs URL

We're attempting to pull worklogs data from service desk plus and when using the below URL we are met with a message stating we do not have permission.
https://sdpondemand.manageengine.com/api/v3/requests/xxxxxx/worklogs/
We used SDPOnDemand.requests.ALL permission.
I find references to needing to use a 'portal' in the url like:
/app/<portal>/api/v3/requests/{request_id}/worklogs
But we hadn't ever included this value previously and our API calls are working. What do I even enter in that field?
The example I found is: https://sdpondemand.manageengine.com/app/itdesk/api/v3/requests/136339000043473321/worklogs. What is itdesk?? 

What am I missing?