Vital CRM
Why can't LINE messages be sent and shows sending failed?

1. You can go to the LINE Official Account backend and click on [Settings > Billing > Overview] to check if the "Monthly Message Usage" has reached its limit. If the usage is full, you will need to purchase additional messages from LINE.

2. Check the response settings and ensure that the webhook is "enabled."

1. You can go to the LINE Official Account backend and click on [Settings > Billing > Overview] to check if the "Monthly Message Usage" has reached its limit. If the usage is full, you will need to purchase additional messages from LINE. 2. Check the response settings and ensure that the webhook is "enabled."
https://faq.vitalyun.com/EN/CRM#4514
為何line訊息傳不出去，顯示發送失敗？ @ 閱讀文件 @ Vitals ESP 知識管理企業雲 (vitalyun.com)
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