About WeChat scan code payment mode 2 callback after successful scan code payment

After the scan code payment was successful, it was found that notify_url was not called in WeChat scan code payment mode 2. I provided this interface for the ios client, but now that the payment has been completed, there is no callback. What information should I use to modify the order status and send a push to the mobile client?

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After the scan code payment was successful, it was found that notify_url was not called in WeChat scan code payment mode 2. I provided this interface for the ios client, but now that the payment has been completed, there is no callback. What information should I use to modify the order status and send a push to the mobile client?

URL must be written correctly