Waiting for message acknowledgements on a sequence aa....aa timed out after bb....bb milliseconds.

aa....aa: Sequence ID
bb....bb: Standby time

Description

When an attempt is made to terminate the sequence at the client side, there is a standby for a fixed time period until Ack messages are sent for all the messages by the service. When Ack messages are not sent after a fixed time period, this message is output and the sequence is terminated.

Action

The sequence is terminated forcibly. No additional processing is required at the client side. For details on the cause of not sending the Ack message, contact the service.