Joke Collection Website - Blessing messages - What is the reason for the error 450 15 in the push information interface of WeChat customer service?

What is the reason for the error 450 15 in the push information interface of WeChat customer service?

Wechat customer service pushes information to send a message:

The message normally returned is as follows, indicating that it has been successfully sent.

Report 450 15 received an error message:

The reason is that when the user's WeChat is inactive for more than 24 hours (the current time is determined by Tencent), the information will not be pushed to the user's official WeChat account.

At this time, if you want to test, please send a message to your own official WeChat account.