Marketing Cloud Engagement | LINE (GroupConnect) Stops Sending Unexpectedly at End of Month

Method : Simple Message Send
First, send a simple message — plain text only, with no AMP script or other content — to a test recipient on the LINE account to triage the issue.

If the message sent during this test is not delivered despite the recipient not having blocked the LINE Official Account, the monthly sending limit described above may have been reached. In that case, check the current month's message send count for the target LINE Official Account and compare it against the contract plan limit.

If the limit has not been reached and a simple text message from GroupConnect still cannot be sent, contact support with details including the date and time the sending failure was confirmed.

Important: Notes on test sends
When testing, do not use Journey Builder or Automation. Instead, go directly to Mobile Studio > [GroupConnect] and create and send a single Outbound Message. This ensures the test is not affected by factors other than the message sending function itself. In particular, Journey Builder shares Job IDs across journeys, so send failures may be caused by issues unrelated to LINE sending — such as stalled sends in other journeys, or Journey Builder contact entry and progress issues.