From the Broker Application Development
perspective, click File > New > Message Map.
Alternatively, to create a message map from
a message flow, open the message flow, right-click a node that supports mapping
(such as a Mapping node or DataDelete node), and click Open Map.
The New Message Map wizard opens.
In the New Message Map wizard, specify the
following criteria:
Whether you are going to map headers (after you have specified this, you
cannot change it)
If you select the option This map is called from a message
flow node and maps properties and message body, all input headers
are copied to output automatically and you cannot specify the order of the
headers.
If you select the option This map is called from a message
flow node and maps properties, headers, and message body, you
must map explicitly the output headers that you want (see Editing a default-generated map manually for
more information).
Whether the map is intended to be called from another map, which is known
as a submap