when i send a request as like here

URL : https://test.api.amadeus.com/v1/ordering/transfer-orders?offerId=8805869695

Request Body :

   {"data": {
     "note": "Note to driver",
     "passengers": [
       {
         "firstName": "John",
         "lastName": "Doe",
         "title": "MR",
         "contacts": {
           "phoneNumber": "+33123456789",
           "email": "[email protected]"
         },
         "billingAddress": {
           "line": "Avenue de la Bourdonnais, 19",
           "zip": "75007",
           "countryCode": "FR",
           "cityName": "Paris"
         }
       }
     ],
     "agency": {
       "contacts": [
         {
           "email": {
             "address": "[email protected]"
           }
         }
       ]
     },
     "payment": {
       "methodOfPayment": "CREDIT_CARD",
       "creditCard": {
         "number": "4111111111111111",
         "holderName": "JOHN DOE",
         "vendorCode": "VI",
         "expiryDate": "1018",
         "cvv": "111"
       }
     },
     "extraServices": [
       {
         "code": "EWT",
         "itemId": "EWT0291"
       }
     ],
     "equipment": [
       {
         "code": "BBS"
       }
     ],
     "corporation": {
       "address": {
         "line": "5 Avenue Anatole France",
         "zip": "75007",
         "countryCode": "FR",
         "cityName": "Paris"
       },
       "info": {
         "AU": "FHOWMD024",
         "CE": "280421GH"
       }
     },
     "startConnectedSegment": {
       "transportationType": "FLIGHT",
       "transportationNumber": "AF380",
       "departure": {
         "uicCode": "7400001",
         "iataCode": "CDG",
         "localDateTime": "2024-09-10T10:30:00"
       },
       "arrival": {
         "uicCode": "7400001",
         "iataCode": "CDG",
         "localDateTime": "2024-09-10T11:30:00"
       }
     },
     "endConnectedSegment": {
       "transportationType": "FLIGHT",
       "transportationNumber": "AF380",
       "departure": {
         "uicCode": "7400001",
         "iataCode": "CDG",
         "localDateTime": "2024-09-10T10:30:00"
       },
       "arrival": {
         "uicCode": "7400001",
         "iataCode": "CDG",
         "localDateTime": "2024-09-10T11:30:00"
       }
     }
   }}

The Response Body Message say:

Unable to process and status code 200.

Why please?????

I want to test this API due to what I want to integrate it in my app.