My api call https://api.hubapi.com/contacts/v1/lists/583
returns
Couldn’t find a List with the given id ‘583’
when using it against
https://api.hubapi.com/contacts/v1/lists/260
I get a valid response.
List 583 exists in my account and I am using the same API call and key for both calls. Why are not all my lists accessible or found via the API?
Yes my API key is correct, yes my account has a list with 583.
Hey, @TWolfe1 
What happens if you use the v3 Lists API endpoint?
Fetch List by ID – Fetch a single list by ILS list ID
GET
/crm/v3/lists/{listId}
Looking at your first screenshot, it shows an ILS identifier for your list (583) which only works with the updated endpoints.
Additionally, can you grab a screenshot of your list details page that worked as expected when using tg v1 list endpoint, please?
Thank you! — Jaycee