# Merchant confirmed callback coupon event

In order to prevent the issue that coupons cannot be collected when coupons are not accessed, the callback event should be confirmed before accessing.

You must call this API before you can call other APIs such as creating coupons.

# Be careful

In order to prevent callback conflicts, causing coupons to receive error, so the final callback address, to the latest confirmation callback coupon event address shall prevail.

# Interface call request specification

Http request method: POST
https://api.weixin.qq.com/shop/coupon/confirm?access_token=xxxxxxxxx

# Request Parameter Sample

{
}

# Return Package Example

{
	"errcode": 0
}

# Callback request logic

After receiving the API request, WeChat will actively callback the coupon event of the merchant's fixed information. The merchant needs to return the result shown below to confirm, otherwise the other API of the coupon cannot be called.

# Callback request parameter example

Depending on the data format (json or xml) set by the merchant, xml is an example

<xml>
    <ToUserName>gh_abcdefg</ToUserName> 
    <FromUserName>oABCD</FromUserName> 
    <CreateTime>1627747200</CreateTime>
    <MsgType>event</MsgType> 
    <Event>open_product_receive_coupon</Event>
    <out_coupon_id>test_coupon</out_coupon_id>
    <request_id>test_coupon_request_id</request_id>
</xml>

# Callback Back Sample

Depending on the data format (json or xml) set by the merchant, xml is an example

<xml> 
  <out_user_coupon_id>test_coupon_user_coupon_id</out_user_coupon_id>  
  <request_id>test_coupon_request_id</request_id>  
  <right_code>0</right_code>  
  <out_coupon_id>test_coupon</out_coupon_id> 
</xml>

# Callback request parameter explaination

# Callback return parameter specification