Documentation about ID Token "sub" claim

Problem statement

We need information about what an ID Token’s Subject claim contains, what it means, and what format(s) it can take.

Solution

You can review our documentation on ID Tokens here.

There are various links where you can get further information. For example, this link to JSON Web Tokens mentions RFC 7519 provides some information on the sub claim.

In terms of formats, it is a string format. You can get more information here.