You must convert a message map from a previous version of IBM® Integration Bus to a graphical data map before you can modify it by using the Graphical Data Mapping editor.
Before you convert a legacy message map, complete the following steps:
In WebSphere Message Broker Version 8 and later, if you want to modify mapping operations that are defined in a legacy message map, you must first convert your map to a graphical data map (.map file). A graphical data map is known as a message map in IBM Integration Bus.
To use a converted legacy message map in your message flows, you must replace legacy Mapping nodes with new Mapping nodes. For more information, see Replacing a WebSphere Message Broker Version 7 Mapping node.
To convert a legacy message map to a message map by using the IBM Integration Toolkit, complete the following steps:
Your message map is converted to a message map that can be modified by using the Graphical Data Mapping editor.
Modify each message flow that references the legacy message map so that new Mapping nodes reference your new message map. For more information, see Replacing a WebSphere Message Broker Version 7 Mapping node.