curl --request POST \
  --url https://app.yampi.ai/api/v1/accounts/{account_id}/treasury/subscriptions/{subscription_id}/adjustments/preview \
  --header 'Content-Type: application/json' \
  --header 'api_access_token: <api-key>' \
  --data '
{
  "adjustment": {
    "amount": 123,
    "concept": "<string>",
    "adjustment_concept_id": 123,
    "product_id": 123,
    "product_base_amount": 123,
    "requires_evidence": true,
    "baseline": true
  }
}
'

const options = {
  method: 'POST',
  headers: {api_access_token: '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    adjustment: {
      amount: 123,
      concept: '<string>',
      adjustment_concept_id: 123,
      product_id: 123,
      product_base_amount: 123,
      requires_evidence: true,
      baseline: true
    }
  })
};

fetch('https://app.yampi.ai/api/v1/accounts/{account_id}/treasury/subscriptions/{subscription_id}/adjustments/preview', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://app.yampi.ai/api/v1/accounts/{account_id}/treasury/subscriptions/{subscription_id}/adjustments/preview"

payload = { "adjustment": {
        "amount": 123,
        "concept": "<string>",
        "adjustment_concept_id": 123,
        "product_id": 123,
        "product_base_amount": 123,
        "requires_evidence": True,
        "baseline": True
    } }
headers = {
    "api_access_token": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

{
  "payload": {
    "currency": "<string>",
    "release_status": "<string>",
    "standalone": true,
    "application_cycle": {},
    "application_choices": [
      {}
    ],
    "product": {},
    "statement": {},
    "distribution": {}
  }
}

{
  "description": "<string>",
  "errors": [
    {
      "field": "<string>",
      "message": "<string>",
      "code": "<string>"
    }
  ]
}