Where does this subdomain prefix come from, and how do I change it?

[BookMark]

Hi,

I am new to Apigee, and still lack understanding. I need to add a new identity zone (under apigee.com/sso), but the prefix (obscured in red) is wrong, and I need to change it. 

Where is this defined?
Where does this prefix come from?
How do I change it?

The prefix here (obscured) is specific to our company, but it got set to the wrong thing, somehow.

Thanks, Brock

[dchiesa1]

I think that is something YOU all have set up.  If you need to change it, you may need to contact Apigee  support through your support portal.