SCIM API always 401

[ibuchanan]

@YY1 and @KCWong,

It helps to start new questions with a new topic. I think the following thread has an answer for directory ids:

Using the get groups API, where can I get the Directory ID?

The API reference here Groups, requires a Directory ID but I dont see any information on where to get this ID from. Can someone help me find this ID? I pulled what looks like an ID from my manage groups page and I get a 403 forbidden error, so I think this is the wrong ID.