This section details the different responses that can be received when creating a discount promise without a pre-added coupon. The responses are categorized based on the outcome of the request, ranging from success in creating the discount promise to different types of errors.

1. Response with discount applied

• Status code: 200 (Success)
• Description: Returns the transaction value with the discount applied, detailed information about the discount, and a link to the discount's legal terms.
• Response Body:

{
  "transaction_amount": 550.0,
  "currency_id": "ARS",
  "discount": {
    "amount": 55.0,
    "detail": {
      "value": 10.0,
      "type": "percent",
      "cap": 1000.0
    },
    "legal_terms": "https://mercadopago.com/legal/terms"
  }
}

2. Response for user/campaign without discounts

• Status code: 200 (Success)
• Description: indicates that the transaction was processed without a discount applied.
• Response body:

{
  "transaction_amount": 150.0,
  "currency_id": "ARS",
  "discount": {}
}

1. Response for incorrect request

• Status code: 400 (Bad Request)
• Description: occurs when the request is malformed or incomplete.
• Response body:

{
  "error": "bad_request",
  "message": "<bad_request_message>",
  "status": 400
}

2. Response for resource not found

• Status code: 404 (Not Found)
• Description: means that the requested resource does not exist on the server.
• Response body:

{
   "error": "not_found",
   "message": "Not found manual input code",
   "status": 404
}

3. Response for internal server error

• Status code: 500 (Internal Server Error)
• Description: indicates a generic server error, suggesting problems on the Mercado Pago server side.
• Response body:

{
  "error": "internal_error",
  "message": "internal server error",
  "status": 500
}