Create Combined Order

curl --location --request POST '/api/v2/apps/readyreturns/combined-returns/' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data-raw '{
    "original_order": {
        "primary_id": "1001",
        "shipping": {
            "status": "fulfilled",
            "ship_to": {
                "first_name": "Customer",
                "last_name": "Address",
                "company": "",
                "address_1": "124 Rivington St",
                "address_2": "",
                "city": "New York",
                "region": "NY",
                "post_code": "10002",
                "country": "United States",
                "email": "customer@gmail.com",
                "phone": "212-555-1234"
            },
            "ship_from": {
                "first_name": "Returns",
                "last_name": "Dept.",
                "company": "Merchant Address",
                "address_1": "6501 E Greenway Pkwy",
                "address_2": "",
                "city": "Scottsdale",
                "region": "AZ",
                "post_code": "85254",
                "country": "United States",
                "email": "equipment@yourcompany.com",
                "phone": "800-555-1234"
            }
        },
        "billing": {
            "status": "paid"
        },
        "boxes": [
            {
                "items": [
                    {
                        "part_number": "Laptop 15 - 16",
                        "description": "MacBook Pro 16 (S/N:12345)",
                        "quantity": 1,
                        "image_link": "https://trueshipsupply.com/wp-content/uploads/2022/06/mbp.jpg"
                    }
                ]
            },
            {
                "items": [
                    {
                        "part_number": "Mobile Phone",
                        "description": "iPhone 2023 (S/N:12345)",
                        "quantity": 1,
                        "image_link": "https://trueshipsupply.com/wp-content/uploads/2022/06/iphone.png"
                    }
                ]
            }
        ]
    },
    "return_order": {
        "primary_id": "1001-R1",
        "shipping": {
            "ship_to": {
                "first_name": "Returns",
                "last_name": "Dept.",
                "company": "Merchant Address",
                "address_1": "6501 E Greenway Pkwy",
                "address_2": "",
                "city": "Scottsdale",
                "region": "AZ",
                "post_code": "85254",
                "country": "United States",
                "email": "equipment@yourcompany.com",
                "phone": "800-555-1234"
            },
            "ship_from": {
                "first_name": "Customer",
                "last_name": "Address",
                "company": "",
                "address_1": "124 Rivington St",
                "address_2": "",
                "city": "New York",
                "region": "NY",
                "post_code": "10002",
                "country": "United States",
                "email": "customer@gmail.com",
                "phone": "212-555-1234"
            }
        },
        "boxes": [
            {
                "items": [
                    {
                        "part_number": "Laptop 15 - 16",
                        "description": "MacBook Pro 16 (S/N:12345)",
                        "quantity": 1,
                        "image_link": "https://trueshipsupply.com/wp-content/uploads/2022/06/mbp.jpg",
                        "custom_fields": {
                            "CUSTOM_RETURN_TYPE_NAME": {
                                "value": "Offboarding"
                            },
                            "CUSTOM_RETURN_TYPE_OPTIONAL_FIELD": {
                                "value": "Employee Name"
                            },
                            "RETURN_TYPE": {
                                "value": "Z"
                            }
                        }
                    }
                ],
                "custom_fields": {
                    "PACKING_GROUP_CODE": {
                        "value": "EL"
                    }
                }
            },
            {
                "items": [
                    {
                        "part_number": "Mobile Phone",
                        "description": "iPhone 2023 (S/N:12345)",
                        "quantity": 1,
                        "image_link": "https://trueshipsupply.com/wp-content/uploads/2022/06/iphone.png",
                        "custom_fields": {
                            "CUSTOM_RETURN_TYPE_NAME": {
                                "value": "Offboarding"
                            },
                            "CUSTOM_RETURN_TYPE_OPTIONAL_FIELD": {
                                "value": "Employee Name"
                            },
                            "RETURN_TYPE": {
                                "value": "Z"
                            }
                        }
                    }
                ],
                "custom_fields": {
                    "PACKING_GROUP_CODE": {
                        "value": "BS"
                    }
                }
            }
        ]
    }
}'