Registering Queues Used by the Integration
Server
You have to
register the queues used by the Integration Server for asynchronous message
processing. More information about these queues:
Queues for
Asynchronous Message Processing.
Perform the following steps:
...
1. On your Integration Server host, call transaction SXMB_ADM.
2. On the Integration Engine: Administration screen, choose Manage Queues.
The Manage Queues screen appears.
3. Choose Register Queues to register the selected queues.

If errors occur (because the queue name has already been used, for example), deregister all the proposed queues so that you can reregister them afterwards. To do this, choose QRFC Monitor.
4. Exit the transaction.