Trello supports SCIM version 2.0, at https://trello.com/scim/v2.
As recommended by the spec, we include v2 in the SCIM API URL to allow us to potentially implement other versions (either 1.1 for older clients, or future versions) without breaking compatibility.
The SCIM API will handle users, teams, and boards that are associated with a single Trello Enterprise.
For example, a SCIM client will see that User C (Figure 1) is a member of Enterprise Team 1 and Board 3, but not that they are a member of Team 1 or Board 2, because these are not associated with the enterprise.
The authorization token sent as a header in the SCIM request determines which enterprise we deal with.