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HTTP status 400
Area General
Problem type https://docs.nexafone.so/errors/bad_request

The request is malformed, such as invalid JSON or a bad Idempotency-Key header.

The detail explains the occurrence; it can read, for example:

  • The Idempotency-Key header must be 1 to 255 visible ASCII characters.
  • The callback could not be read.
  • The request body could not be read.

Fix the request before retrying.

{
"type": "https://docs.nexafone.so/errors/bad_request",
"title": "Bad Request",
"status": 400,
"code": "bad_request",
"detail": "The Idempotency-Key header must be 1 to 255 visible ASCII characters.",
"requestId": "01J9Z8Q4TQ3W6M5V2X7Y8Z9A0B"
}

Match on code, never on detail: the wording may change. See Problem Details.