WeChat card coupon development inside special tickets

Coupon development Inside Special coupons after the creation of a successful. Updating the ticket information has always prompted code to be illegal.
The process in the official document does not see where to get the code
If it's a custom code, I'll just pass it on.
Now the situation is can be picked up, that is, update the seat information when the code is illegal,

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Coupon development Inside Special coupons after the creation of a successful. Updating the ticket information has always prompted code to be illegal.
The process in the official document does not see where to get the code
If it's a custom code, I'll just pass it on.
Now the situation is can be picked up, that is, update the seat information when the code is illegal,

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