请问各位，微信礼品卡开发文档10.1~10.3中的几个callback是在哪里配置接收呢，一直没有接收到这几项callback，还请大家指教，不胜感激！
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- Callback Back Sample: 小商店/Development/Capabilities/Commercial capabilities/Trading component/Custom trading components and open interfaces/Event callback/User Coupon Callback
- Event callback access process: 小商店/Development/Capabilities/Commercial capabilities/Trading component/Custom trading components and open interfaces/Event callback/Event callback access process
- Callback request parameter example: 小商店/Development/Capabilities/Commercial capabilities/Trading component/Custom trading components and open interfaces/Event callback/User Coupon Callback
- Callback request parameter explaination: 小商店/Development/Capabilities/Commercial capabilities/Trading component/Custom trading components and open interfaces/Event callback/User Coupon Callback
- Callback return parameter specification: 小商店/Development/Capabilities/Commercial capabilities/Trading component/Custom trading components and open interfaces/Event callback/User Coupon Callback
在公众号里配置回调url，自己写回调接口接收信息。注意这个回调会接收到所有微信的返回信息。
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