08 - Initiate updates/changes to an existing order(item quantity, fulfillment updates, or return requests) - /update

curl --location --request POST '/update' \
--header 'Content-Type: application/json' \
--data-raw '{
    "context": {
        "domain": "ONDC:RET11",
        "country": "IND",
        "city": "std:0124",
        "core_version": "1.2.5",
        "action": "update",
        "transaction_id": "{{transaction_id}}",
        "message_id": "{{message_id}}",
        "timestamp": "{{timestamp}}",
        "bap_uri": "{{bap_uri}}",
        "bap_id": "{{bap_id}}",
        "ttl": "PT30S"
    },
    "message": {
        "update_target": "item",
        "order": {
            "id": "SS1747978302628",
            "fulfillments": [
                {
                    "type": "Return",
                    "tags": [
                        {
                            "code": "return_request",
                            "list": [
                                {
                                    "code": "id",
                                    "value": "bcef07ab-c158-44f1-b619-9d362428ddb2"
                                },
                                {
                                    "code": "item_id",
                                    "value": "id_ancc5_0_0"
                                },
                                {
                                    "code": "item_quantity",
                                    "value": "2"
                                },
                                {
                                    "code": "reason_id",
                                    "value": "003"
                                },
                                {
                                    "code": "reason_desc",
                                    "value": "some detailed reason for return"
                                },
                                {
                                    "code": "images",
                                    "value": "https://some-images-for-item.com"
                                },
                                {
                                    "code": "ttl_approval",
                                    "value": "PT24H"
                                },
                                {
                                    "code": "ttl_reverseqc",
                                    "value": "P3D"
                                },
                                {
                                    "code": "parent_item_id",
                                    "value": "P3121"
                                }
                            ]
                        },
                        {
                            "code": "return_request",
                            "list": [
                                {
                                    "code": "id",
                                    "value": "5100b016-13b8-4ce2-9f1a-d75d623fa82a"
                                },
                                {
                                    "code": "item_id",
                                    "value": "id_5yzai_2_0"
                                },
                                {
                                    "code": "item_quantity",
                                    "value": "2"
                                },
                                {
                                    "code": "reason_id",
                                    "value": "003"
                                },
                                {
                                    "code": "reason_desc",
                                    "value": "some detailed reason for return"
                                },
                                {
                                    "code": "images",
                                    "value": "https://some-images-for-item.com"
                                },
                                {
                                    "code": "ttl_approval",
                                    "value": "PT24H"
                                },
                                {
                                    "code": "ttl_reverseqc",
                                    "value": "P3D"
                                },
                                {
                                    "code": "parent_item_id",
                                    "value": "P3121"
                                }
                            ]
                        }
                    ]
                }
            ]
        }
    }
}'