const options = {
  method: 'POST',
  headers: {
    'X-Spree-Seller-Id': '<x-spree-seller-id>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({note: '<string>', reference: '<string>', file: '<string>'})
};

fetch('http://{defaultHost}/api/v3/seller/requirements/{requirement_id}/submissions', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

curl --request POST \
  --url http://{defaultHost}/api/v3/seller/requirements/{requirement_id}/submissions \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'X-Spree-Seller-Id: <x-spree-seller-id>' \
  --data '
{
  "note": "<string>",
  "reference": "<string>",
  "file": "<string>"
}
'

{
  "id": "selsub_UkLWZg9DAJ",
  "status": "accepted",
  "note": "Confirmed.",
  "review_note": null,
  "reference": null,
  "reviewed_at": "2026-01-15T12:00:00.000Z",
  "created_at": "2026-01-15T12:00:00.000Z",
  "updated_at": "2026-01-15T12:00:00.000Z",
  "file_url": null,
  "file_name": null
}

{
  "error": {
    "code": "record_not_found",
    "message": "Seller requirement not found"
  }
}