How? Can someone send me a guide or write the steps?
It depends on your environment.
You can schedule a message with cron and some endpoint.
or, you can use a scheduler depending on your using programming language.
Automatically link new line friend connection via bot to existing profile in hotel reservation server.
Can Google Pay be implemented in LIFF?
How to turn off "seen" status when use webhook
How to avoid auto-response time delay while using LINE Messaging API
We are getting an "Unlicensed API Request" Error with status 403 when trying to get a notification token in line miniapp service message development.
Can I add this forum on my app for my users?
Can I use another developer account for Line Login?
Other language value is not supporting in Messaging API response
My official channel do not have a Provider.