Available in...
Open Studio for ESB
The otherwise link can only be used with a cMessageRouter component and if at least one when link has already been used to filter and route messages.
So, the otherwise link retrieves all messages that are not matching the conditions defined in the several when links.
Note:
It is recommended not to put any message handling after the when or the otherwise link. Always use a Mock/Direct endpoint to replace them and make a new Route to handle the messages.