User-defined properties (UDPs) give you the opportunity to configure message flows at deployment time, without modifying program code.
A UDP is a user-defined constant that you can use in your ESQL or Java programs. You can give the UDP an initial value when you declare it in your program or when you use the Message Flow editor to create or modify a message flow.
In ESQL, you can define UDPs at the module or schema level.
After a UDP has been defined by the Message Flow editor, you can modify its value before you deploy:
Now you are ready to deploy the message flow. See Deploying a broker archive file.