# Modify the order price

At present, we support only lower prices, we do not support higher prices for the time being.

Each time the price is changed, the latest total price for each item (same sku_id) is defined, and if a item is not entered in the request, the item's price is not changed by default.

Orders may be revised no more than 50 times before payment, and all prior revisions will be void after each new revision is successful on the same order.

# Dxplaination of Interface Call Request

http请求方式：POST
https://api.weixin.qq.com/product/order/change_order_price?access_token=xxxxxxxxx

# Example of request parameters

{
    "order_id": 123456,
    "change_express" : true,
    "express_fee" : 0,
    "change_order_infos": 
    [
        {
            "product_id": 1234,
            "sku_id" : 5678,
            "change_price" : 300
        }
    ]
}

# Examples of back-up

{
    "errcode": 0,
    "errmsg":"ok",
}

# Dxplaination of request parameters

# Dxplaination of callback parameters

# Return code