Little Jingdong’s program The first one is parameter configuration or the account does not have corresponding permissions. You should use the instant account interface and the corresponding ID KEY. You need the MD5 version The second prompt is very clear. The appid of the copied WeChat payment is wrong
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Print out all the parameters submitted to Alipay before submitting.
According to the error message, you may not have set the appid.
It seems that the length of the appid parameter is wrong
Little Jingdong’s program
The first one is parameter configuration or the account does not have corresponding permissions. You should use the instant account interface and the corresponding ID KEY. You need the MD5 version
The second prompt is very clear. The appid of the copied WeChat payment is wrong