sandbox_key_limit

Your sandbox already holds its maximum number of active credentials of this kind (5 sandbox keys; 20 each of API tokens, read-only keys and agent keys by default).

HTTP 403. Nothing reached the broker.

Likely causes:

• Creating another sandbox key (dashboard quickstart or POST /v1/sandbox/keys) while the sandbox holds the maximum.
• Creating another API token, read-only key or agent key with a sandbox key or token while the sandbox holds the maximum of that kind.

What to do: Revoke a sandbox credential of that kind you no longer need on the dashboard, then create the new one.

Retry: No. The same request gets the same answer; change something first.

Listed under Sandbox in Errors. Send the error’s requestId to support and we can find the request.