LINE
A LINE official account becomes a conversation queue your team answers from the shared inbox, alongside WhatsApp, email and the rest.
You supply:
your LINE channel credentials.
What the LINE channel carries
Your own LINE channel
Connect with the channel id, channel secret and access token from your LINE developer console. The official account stays yours.
Messages and media
Incoming messages and attachments open a conversation; replies go back through the same channel with delivery state on each message.
The same inbox behaviour
Assignment, labels, notes, mentions and reports work on LINE conversations without any separate setup.