Why i can not create a Messaging API channel
I don't think anyone can help you with such little information.
OA can not display in LINE Developrs provider
Unable to send message from Line API
What is the relationship/cardinality between unverified account, accounts within the unverified account and channels?
Not getting correct user id in developer console against channel
I cannot create a new Messaging API channel with my developer account
Why am I getting message "..Unfortunately, this account isn't set up to respond to individual messages..."
Line BCRM console not showing create channel option
About userid from line login and messaging api
Messaging API - How to integrate with existing official account
batch send message test, but has some lost message