Sorry, with out-of-the-box I meant the configuration options 😉.

Annotation: It seems to be more than just making the singingName configurable.

Can you explain what you mean by this?

Yes. When I change the “es” to “aoss” in the debugger then I get following response error:

Response: 403 'Forbidden' from 'https://xxx.region.aoss.amazonaws.com' with body 
{
  "status": 403,
  "request-id": "<uuid>",
  "error": {
    "reason": "Customer authentication failed: ResultDetail: { Code\u003dInvalidSignature, Message\u003dInvalid signature, does not match, }",
    "type": "AccessDenied"
  }
}