Hi Joseph,
Currently, the Caliper API supports creating subsidiaries only in the context of user creation through the AddUser and Enrollment endpoints.There isn't an existing endpoint for retrieving subsidiaries via the API. That said, it would be fairly simple to add to the Caliper API, since we have an existing internal endpoint that could be used to fetch a list of subsidiaries, though right now it retrieves them by customer ID, not tax ID. Expanding this to support tax ID lookups would likely require additional work from our HQ team. If this is something you would be interested in using through the API, I’d recommend creating a feature request via the q2 developer portal so that we can start working on this request and you would be able to track progress.
Best,
Solène