---
uuid: 3886b854-1d46-4f20-b6f6-4ca99f330302
date_created: 2025-07-05T08:07:50.600Z
date_updated: 2026-03-11T09:25:34.696Z
outdated: true
end_of_support_date: 2024-10-20
routes: 
  - POST /v2/proposals/{proposal_id}/transport_details
---

# Impact migration of the route POST /v2/proposals/{proposal\_id}/transport\_details to POST /v3/proposals/{proposal\_id}/transport\_details

## Context

Upgrade from **POST** - `/v2/proposals/{proposal_id}/transport_details` to **POST** -  `/v3/proposals/{proposal_id}/transport_details`

⭐  **Key benefits :** Having the cancellation\_policy\_type one level lower: under each travel\_section

***

> As a BE B2B Dev
> I want to retrieve the cancellation\_policy\_type of my transportation under each travel\_section
> In order to display it on the front-end

***

## Impacts

Route to call :

* **POST** - `/v3/proposals/{proposal_id}/transport_details`

❗ `travel_sections.cancellation_policy_type` is an ENUM \[ AUCUN, THEO, WEBTHEO, NDC ]

**Model**

| Champ API                                            | Définition                                                                  | Example | Type                                 |
| ---------------------------------------------------- | --------------------------------------------------------------------------- | ------- | ------------------------------------ |
| \[0].travel\_sections\[0].cancellation\_policy\_type | Used to determine which cancellation policy is to be applied to this travel | THEO    | ENUM: \[ AUCUN, THEO, WEBTHEO, NDC ] |

**POST** */v2/proposals/{proposal\_id}/transport\_details*

**Output Was**

```diff
[
  {
    "way": "INBOUND",
    "total_duration_in_min": 745,
    "travel_sections": [
      {
        "departure": {
          "city": {
            "id": "PAR",
            "label": "PARIS"
          },
          "location": {
            "id": "CDG",
            "label": "PARIS-ROISSY CDG",
            "terminal_code": "2A"
          },
          "date": "20160812",
          "time": "13:34:00.000"
        },
        "arrival": {
          "city": {
            "id": "PAR",
            "label": "PARIS"
          },
          "location": {
            "id": "CDG",
            "label": "PARIS-ROISSY CDG",
            "terminal_code": "2A"
          },
          "date": "20160812",
          "time": "13:34:00.000"
        },
        "transport": {
          "type": "PLANE",
          "class": "PLANE_ECONOMY",
          "company": {
            "operator": {
              "id": "SQ",
              "label": "SINGAPORE AIRLINES",
              "logo": "http://www.airfrance.fr/logo"
            },
            "exploiter": {
              "id": "SQ",
              "label": "SINGAPORE AIRLINES",
              "logo": "http://www.airfrance.fr/logo"
            }
          },
          "travel_number": "SQ1234",
          "baggage": {
            "quantity": "2",
            "weight": "23kg"
          },
          "vehicle_type": "BOEING 747",
          "fare_class": "U"
        },
        "technical_stops": 0,
        "connection_duration_in_min": 130,
        "stopover_duration_in_min": 130,
        "duration_in_min": 250,
        "clubmed_transport": false
      }
    ],
    "cancellation_policy_type": "THEO"
  }
]
```

**POST** */v3/proposals/{proposal\_id}/transport\_details*

**Output Became**

```diff
[
  {
    "way": "INBOUND",
    "total_duration_in_min": 745,
-    "cancellation_policy_type": "THEO",
    "travel_sections": [
      {
        "departure": {
          "city": {
            "id": "PAR",
            "label": "PARIS"
          },
          "date": "20160812",
          "time": "17:00:00",
          "location": {
            "id": "CDG",
            "label": "PARIS-ROISSY CDG",
            "terminal_code": "2A"
          }
        },
        "arrival": {
          "city": {
            "id": "PAR",
            "label": "PARIS"
          },
          "date": "20160812",
          "time": "17:00:00",
          "location": {
            "id": "CDG",
            "label": "PARIS-ROISSY CDG",
            "terminal_code": "2A"
          }
        },
        "technical_stops": 0,
+       "cancellation_policy_type": "THEO", 
        "connection_duration_in_min": 130,
        "stopover_duration_in_min": 130,
        "transport": {
          "type": "PLANE",
          "company": {
            "operator": {
              "id": "SQ",
              "label": "SINGAPORE AIRLINES",
              "logo": "http://www.airfrance.fr/logo"
            },
            "exploiter": {
              "id": "SQ",
              "label": "SINGAPORE AIRLINES",
              "logo": "http://www.airfrance.fr/logo"
            }
          },
          "travel_number": "SQ1234",
          "baggage": {
            "quantity": "2",
            "weight": "23kg"
          },
          "vehicle_type": "BOEING 747",
          "class": "PLANE_ECONOMY",
          "reference": "SQ1234",
          "fare_class": "U"
        },
        "duration_in_min": 250,
        "clubmed_transport": false,
        "flight_code": "THEO9E"
      }
    ]
  }
]
```