400
bad_requestplatformThe request is malformed
Returned by the implementation; no specification rule declares it yet.
A generic 400 for a request the endpoint could not make sense of before any rule ran — a missing required path segment, a query parameter of the wrong shape, a header the operation needs.
Why the API refuses
tenant is required
What to do
Read detail: it names what was wrong. This code is deliberately unspecific, so if you are seeing it on a request that looks correct against the reference, send us the X-Request-Id — an endpoint answering a valid request with a bare bad_request is usually a missing rule on our side.