Emitir Nota de Crédito

curl -X POST https://api.staging.factioapp.com/documents \
  -H "X-API-Key: fct_test_TU_API_KEY_AQUI" \
  -H "Idempotency-Key: a1b2c3d4-e5f6-7890-1234-56789abcdef0" \
  -H "Content-Type: application/json" \
  -d '{
    "document_type": "04",
    "issue_date": "2024-01-20",
    "issuer_id": "TU_ISSUER_ID",
    "establishment_id": "TU_ESTABLISHMENT_ID",
    "emission_point_id": "TU_EMISSION_POINT_ID",
    "buyer_id_type": "04",
    "buyer_id": "1792146739001",
    "buyer_name": "Empresa de Pruebas S.A.",
    
    "modified_document_type": "01",
    "modified_document_date": "2024-01-15",
    "modified_document_auth_number": "1501202401179214673900110010010000000051234567812",
    "modification_reason": "Descuento por promoción tardía",
    
    "subtotal": "20.00",
    "total_tax": "3.00",
    "total": "23.00",
    "lines": [
      {
        "code": "PROMO-01",
        "description": "Descuento retroactivo",
        "quantity": "1.00",
        "unit_price": "20.00",
        "subtotal": "20.00",
        "taxes": [
          {
            "tax_code": "2",
            "tax_percentage_code": "4",
            "tax_rate": "15.00",
            "taxable_base": "20.00",
            "tax_amount": "3.00"
          }
        ]
      }
    ]
  }'

{
  "id": "doc_04CN...",
  "status": "DRAFT",
  "sequential": "000000001",
  "message": "Document accepted for async processing"
}